A truly global network, the Internet
interconnects most of the world's large computer systems. The proliferation of
personal computers with modem and networking capabilities has recently (and
rapidly) popularized the Internet, which once was considered the realm only of
universities, government agencies, and large corporations. McTrans is
pleased to be able to take advantage of this technology and better serve the
public by offering enhanced electronic access.
The primary mechanism for interactive
information exchange on the Internet is the World Wide Web (WWW), commonly
known as 'the Web.' The Web is composed entirely of a series of links from one
object to another. Some of the most common types of Web links include
informational pages and forms (optionally containing hypertext linkages),
images, FTP (File Transfer Protocol for downloadable files), Telnet (for login
to remote systems, such as McLink), and multimedia (video and/or audio) clips.
(File downloads and remote login may also be accomplished by standalone FTP and
Each page on the Web has a unique
address, known as a Universal Resource Locator (URL). For instance, McTrans
is now available on the Web at http://www-mctrans.ce.ufl.edu. A home page is
the typical top-level entry point of a Web site. (The home page shared by the
Transportation Research Center and McTrans is shown on the cover of this
McTrans has learned that certain
WWW browsers may have difficulty accessing our FTP site. We are working with
the developer of our server software to resolve this issue. In the interim, for
best results with FTP we suggest the use of Netscape Navigator or a standalone
FTP client program.
A software program known as a Web
browser is used to access the Web in either graphical or text mode. Multimedia
support may be built in or require additional software. Two very popular
browsers are Mosaic and Netscape, both requiring a graphical operating system
such as Microsoft Windows, OS/2, or Macintosh. Microsoft offers Internet
Explorer, a graphical Web browser exclusively for the Windows 95 operating
Of course, WWW access also requires an
Internet connection. Many large organizations are connected directly to the
Internet on a full-time basis. Most individuals and smaller organizations,
however, will use a modem to connect to the Internet via a service provider. A
modem capable of at least 14,400 bps (bits per second) is suggested to provide
Most of the popular online services,
such as America Online, CompuServe, the Microsoft Network , and Prodigy now
offer full Internet access at very reasonable prices. No-cost "trial offers"
for these services frequently are packaged with new modems and computer
systems. Additionally, many communities operate no-cost (or low-cost)
public-access Freenet systems for local residents.
McTrans operates a 24-hour,
PC-based electronic Bulletin Board System (BBS) system called McLink. McLink
will allow the uploading and downloading of files and messages at up to 28,800
bps. Some of the available features are:
Downloadable catalog information as
the McFinder (our catalog on disk).
Electronic messaging and forums facilitate the exchange of ideas, problems,
Uploading and downloading of selected McTrans public domain,
shareware, and demonstration software.
Listings of transportation-related conferences, training courses and other
On-line ordering of our software products.
Electronic Software Support
To improve our technical assistance to
users, McTrans has several areas on McLink. These message areas offer an
interactive forum for users, and new bulletins provide a link for McTrans
to post current information on our most widely used software. The programs
initially supported by this service include the Highway Capacity Software
(HCS), TRAF-NETSIM, TRANSYT-7F, the Arterial Analysis Package (AAP), PASSER
II-90 and HYDRAIN. File and forum (discussion) areas facilitate the uploading
of data files for troubleshooting and even make maintenance updates to these
programs available to registered users on McLink, for faster service.
McLink is accelerating!
We have recently upgraded McLink with
three lines and to accommodate 28,800 bps. This means that data can be
transferred at approximately ten times the previous rate, making communication
faster and phone bills smaller. For example, a one-megabyte file, which
transfers in about 80 minutes at 2400 bps, will take only about eight minutes
at 28,800 bps. The color screens and ANSI graphics that can be quite slow at
2400 will now refresh much more quickly.
McLink is also available via the
Internet (using Telnet and FTP) and the World Wide Web.
There are numerous ways to access McTrans.
In addition to the McLink dial-up BBS at (352) 392-3225, we have an electronic
mail (e-mail) link to CompuServe and, of course, are accessible through the
World Wide Web: http://www-mctrans.ce.ufl.edu
+ lots of RAM + big hard disk + fast
computer = Winner!
The recently-introduced Microsoft
Windows 95 operating system promises many benefits, including a simplified user
interface, true multitasking, long filenames, improved hardware and multimedia
support, built-in fax and e-mail, enhanced support for networking and workgroup
computing and better memory management. As with most things that sound too good
to be true, however, there is a catch. Windows 95 demands a modern,
well-equipped PC stocked with plenty of RAM (random access memory), a very
large hard disk and a VGA (or better) display.
According to Microsoft, the official
minimum requirements for Windows 95 are a 386 processor, 4mb of RAM and 35-40mb
of free hard disk space. In practice, however, users with 386-based PCs are
likely to see sluggish performance. A 486 processor running at 33mhz is
probably the practical minimum, with 66mhz (or faster) preferred. Windows 95
will load on a 4mb PC, but most application software (including Microsoft's own
Plus!) will require at least 8mb, with 12-16mb being required for optimal
performance and to take advantage of some advanced features. Users opting to
install the recommended Microsoft Plus! companion product will need an
additional 25mb of hard disk space, bringing the true minimum up to 60-65mb.
Microsoft Exchange, Microsoft Network, and Internet support each require
additional disk storage.
The good news is that given a
suitably-equipped PC, Windows 95 does a very good job of living up to
expectations. In tests and day-to-day use on several computers here at McTrans
it has proven to be a very robust and crash-resistant operating system.
Compatibility with existing applications, while not perfect, is excellent, and
updates to problematic applications have already been announced by most
vendors. We have found the user interface to be intuitive and much improved
over that of Windows 3.1. Printing a document can now be as easy as dragging it
to the printer icon. The new "desktop taskbar" and the ability to easily create
application shortcut icons and store them on the desktop should make "power
users" of nearly all.
One of the most powerful new features of
Windows 95 is 32-bit preemptive multitasking, which is the ability to run more
than one application at the same time, doing useful work in each and not
seriously degrading system performance. This promising feature requires
specially written 32-bit Windows applications, so the upgrade process does not
stop with Windows 95 itself, and not all existing Windows 3.1 programs will
likely be upgraded by their developers. (Windows NT also has this multitasking
ability, and Microsoft has indicated that the Windows 95 user interface will be
incorporated into a future version of Windows NT.)
Windows 95 provides an exciting preview
of the future of desktop computing. It is a definite step forward, though not a
quantum leap. Overall, Windows 95 has proven to be very compatible with a wide
variety of packages. However, many organizations will want to move slowly,
making certain that the required hardware, training resources and software
updates are in place before undertaking an enterprise-wide upgrade. Users of
older PCs that may not be fully up to the task of running Windows 95 should
have an ample transition period during which existing MS-DOS and Windows 3.1
programs will continue to be supported by most vendors.
Running McTrans Software Under
Many of the most popular McTrans-supported
programs have now been successfully tested under Windows 95. Since there is no
longer a need for a separate DOS, minor procedural adjustments may be required
by users of MS-DOS-based software. In particular, we have noted two situations
that users may encounter when running applications designed for MS-DOS from the
Windows 95 desktop:
1. An installation program requires that
Windows not be present to install. The solution is to select the icon of the
installation program, then click on File, Properties, Program, Advanced,
Prevent MS-DOS based programs from detecting Windows. This will hide from the
installation program the fact that it is being run from a Windows environment.
2. "Out of environment space" message
encountered. The solution is to select the icon for the application, then click
on File, Properties, Memory, Initial Environment, 4096. This effectively
increases the amount of memory available to the program.
What's McTrans Doing About
The Windows 95 evolution (we don't think
it'll be a revolution) should occur slowly over the next year or so.
International Data Corporation (IDC) recently said that they estimate home PC
users moving to Windows 95 in droves -- 19.5 million by the end of 1995 and 70
million world-wide a year later. But they said that only 23% of 400 information
managers they asked (who use Windows now) expected to upgrade any time in the
near future. Their big jump should come in 1996.
So what is McTrans doing? We
have made a policy decision that all further new software development will be
aimed at the Windows 95 platform, but we will also produce Windows 3.1 versions
(possibly Mac, OS/2 and Unix, too) of the MS-DOS-based software that we
maintain. All versions will be Windows-like in their look-and-feel.
The programs most affected by this are
the series of traffic model integrators and their component programs: the
Arterial Analysis Package, the Highway Capacity Software, McT7F and WHICH.
Indeed, the first will be McT7F, because it's the simplest. This will be our
If you have any thoughts, please send
them to McTrans -- we want to serve you!
[Ed. The cited IDC data are copyright
1995, Ziff-Davis Publishing Company, L.P.]
The CORSIM Model
CORSIM (CORridor SIMulation) is the
latest addition to the TRAF family of models, and it simulates traffic behavior
on integrated urban transportation networks of freeways and surface streets.
CORSIM synthesizes the NETSIM and FRESIM models to provide the most
comprehensive simulation capabilities for the analysis of traffic operations,
the evaluation of geometric design, the assessment of congestion and its
mitigation strategies, and the evaluation of Transportation Systems Management
as well as Advanced Traffic Management Systems (ATMS) strategies.
The NETSIM and FRESIM components of the
CORSIM model simulate traffic behavior at a microscopic level that renders a
highly detailed representation of individual vehicles and their interaction
with the physical environment and other vehicles. NETSIM models the traffic
behavior on the surface street segments of the network, while FRESIM models the
traffic behavior on the freeway segments. The interface between the two
components is transparent to the user; initially, the user need only partition
the traffic network into surface street and freeway subnetworks and then
identify the physical location of interface points between the adjoining
subnetworks. The CORSIM model allows for the realistic interface of traffic
effects between the freeway and surface street segments as well as the capacity
to "look ahead" between those subnetworks.
Among the existing traffic simulation
models, CORSIM offers the widest range of applications, which include the
Evaluation of ATMS strategies, such as
bus/HOV ramp bypass, ramp metering and arterial signalization, traffic
signalization, and preferential HOV lane treatments on surface streets and
Modeling of congestion traffic flow via
the representation of queue formation and dissipation, spillback and cycle
failures, and capacity-reducing effects (such as lane changing and freeway
merging and weaving).
Evaluation of geometric design
alternatives and analysis of traffic operations, such as lane additions and
closures, freeway and surface street diversion plans, ramp closures, work zone
modeling, freeway and surface street incident blockages and incident impacts,
and freeway ramp metering and surface street signalization and control.
To facilitate the use of CORSIM, the
preparation and coding of its input data, and the analysis of its output, the
Federal Highway Administration has sponsored the design and development of a
number of support and utility programs, which include the graphical user
interface for input data preparation (ITRAF) and the graphical postprocessor
for simulation animation and output display (traphix).
The first round of beta testing of the
CORSIM model and its support programs was recently completed. In response to
the participants' recommendations for enhancements and modifications to the
model, revisions are currently under way. The Federal Highway Administration
has targeted mid-1996 for the public release of the CORSIM model and its
support programs. At a minimum, CORSIM requires a 80386/80387 processor with 8
MB of extended free memory. CORSIM will be available for both the MS-DOS and
NETSIM is the most widely used model
for simulating traffic flow on urban networks. The primary features and
capabilities of this well-known model have been discussed at length in previous
issues of the McTrans newsletter. The NETSIM component of the CORSIM
model is replacing NETSIM version 5, which is the recently released stand-alone
version that includes the following enhancements:
Modeling of shared-lane operations
Improved actuated control logic with lead/lag phasing
Simultaneous phase gapout
Modeling of multimovement lanes
Intralink lane changing
Detailed intersection simulation
Urban interchange simulation that allows for the specification of
origin-destination data, rather than turn percentages, for each link of an
Static traffic assignment for modeling drivers' route choices according to
user-optimal or system-optimal criteria.
FRESIM (FREeway SIMulation) is a
stochastic, microscopic freeway model that simulates traffic behavior under
most of the prevailing freeway geometric conditions, which include the
One to five through-lane freeway
mainlines, with one- to three-lane ramps and one- to three-lane interfreeway
Variations in grade, radius of curvature, and superelevation
Lane additions and lane drops at any location on the freeway
Auxiliary lanes, which are used by traffic for entering or exiting the mainline
Work zone modeling through the use of the blockage incident capability
Modeling of HOV lanes and HOV ramp bypass lanes.
The model also provides the realistic
simulation of operational features, which include the following:
Lane changing, merging, and weaving
Clock-time and traffic-responsive ramp metering
Freeway blockage incidents and rubbernecking
Comprehensive representation of the freeway surveillance system
Heavy vehicle movement, which may be biased or restricted to certain freeway
lanes Incident detection and MOE estimation
Modeling of bus operations and direct treatment of HOV operations.
ITRAF is an interactive program with a
graphical user interface that was developed to simplify and accelerate the
tasks of creating and editing input data files for the TRAF family of models.
ITRAF is a Windows application that includes pull-down and pop-up menus;
advanced file maintenance, data entry, and error-checking capabilities; and a
context-sensitive help system that guides the user through the process of
creating and editing TRAF input data files. ITRAF provides full support for the
traphix is a state-of-the-art graphics
postprocessor for the CORSIM model that supports the static display of
simulation input and output data as well as the animated display of simulated
traffic in a postprocessing mode.
HieLoW is a user-friendly
software designed to help modeling discrete choice behaviors. The choice of
goods and services a consumer makes depends on the characteristics of both the
goods and services, and the individual. The relative importance of these
characteristics are gathered in utility functions and estimated with discrete
This estimation can easily be achieved
with HieLoW from a sample of observations regarding consumers revealed or
stated preferences and considering the specification of either a multinomial or
a hierarchical (nested) logic model. To improve the quality of estimated
models, HieLoW provides the user with detailed statistical information.
Within the Department of Mathematics
Optimization Unit of the Namur University (FUNDP), the Transportation Research
Group has developed a robust and efficient maximization algorithm. Based on
recently developed trust region methods, it explicitly exploits, when needed,
the non-concavity of the loglikelihood function.
HieLoW is integrated in the WindowsTM
environment. A permanent dialog, through dedicated boxes, leads the modeller
from the model specification up to the results analysis.
HieLoW provides the user with direct
access to other WindowsTM software (editors, word processors,...) enabling
report writing simplification for instance.
A tutorial helps beginners getting
familiar with HieLoW. A glossary and a permanent contextual help system are
also included to facilitate the user's work.
Even though all the information about
the quality of an estimated model is contained in the value of the
coefficients, the final likelihood, and the variance-covariance matrix, HieLoW
also provides the modeller with more convenient information: statistical tests,
confidence intervals,... Moreover, correlation problems can be graphically
HieLoW APPLICATION FIELDS
HieLoW can be used in the context of any
choice behavior analysis including marketing, transportation, and land use
A typical use of HieLoW in marketing
research is the estimation of models describing the impact of several goods,
services and brands characteristics on consumer behavior.
HieLoW helps transportation
professionals to model travel behavior in the context of mode choice, route
choice or parking choice and enables estimation of the relative influence of
such factors as travel time, price, security, comfort and other travel choices.
Land use planners can use HieLoW to
identify criteria influencing, for instance companies location choice within an
area and housing choice.
A demonstration version of HieLoW is
available. Version 1.0 of HieLoW is available in French and in English. HieLoW
runs on IBM PC compatibles (with, at least, a 80386 processor) with the
Microsoft WindowsTM environment. Licenses are available either for educational
(teaching and academic research) or for commercial purposes.
The software package includes free
technical support, maintenance and upgrades for a one-year period.
HieLoW (#HEILOW.FR) by the
Transportation Research Group of the FUNDP - Namur University is available
through STRATEC S.A. 32-(0)2-735.09.95 or from McTrans at LOS 7 for
Rural Passenger Transportation (RPT)
Spreadsheets implements the computational procedures described in the
Workbook for Estimating the Demand for Rural Passenger Transportation developed
under Transit Cooperative Research Program B-3. The user supplies information
about service area size, demographic characteristics. social service programs
and quantity of passenger transportation service available to market segments.
The spreadsheet implements computations to estimate annual demand (one-way
trips) for both Program Related and Non-Program Related services. Depending on
user supplied data, the spreadsheet produces either and incremental forecast,
if data on current services and their use are supplied, or a synthetic
forecast, if no data on current services are supplied.
RPT Spreadsheets (#RPT) by SG Associates
is available for $40 at LOS 3. The documentation (RPT.D) is available for $25.
Stormwater Infiltration Structure
Design (SISD) software will assist engineers and architects to design
stormwater facilities using aggregates. These designers are in highway
departments, consulting engineer and architectural firms, engineering schools
and the offices of developers of shopping centers, office parks and residential
subdivisions. The program will calculate peak flows, hydrographs and run off
volumes. These calculations will be used in the design of:
Vegetated Swales with Check Dams
SISD package includes 3-1/2" diskette
and users manual. SISD version 1.0 (#SISD) by National Stone Association is
available for $45 at LOS 7.
Smart Parking Analysis (SPARKS),
Version 1.0 Release 2, is a unique and powerful tool for analysis and design of
on-street parking facilities including its ability to model Parking Guidance
System (PGS). It is the result of an intensive research aimed at modeling
traffic operational behavior experienced in parking facilities.
SPARKS is an integrated package
comprising of the following models uniquely developed:
on-street parking model
off-street parking model
revenue analysis model for on-street based on cost optimization techniques
stochastic models for on-street and off-street for determination of the
maximum number of vehicles parked in the facility
The assimilation of the above models for
parking analysis in a common umbrella makes this package one of its kind in the
industry. Deficiencies of the Parking Generation Manual (PGM) method of design
with its empirical approach, insufficient or lack of data for certain class of
land uses, inability to model on-street parking and problems associated with
joint use facilities are eliminated using SPARKS. The stochastic nature of
vehicle arrival process, delay in searching for a parking space, probalistic
weights on long and short term parking contributing to the waiting delay of an
arriving vehicle and the probability that a vehicle leaves because of lack of
an available space. The effect of these traffic operational elements are
captured in SPARKS. Applications of SPARKS include all types of parking studies
including parking master plans, sizing of parking facilities, revenue studies,
and research. SPARKS is particularly suited for modeling PGS which minimizes
searching delay for vacant parking spaces.
SPARKS has a menu driven data input
structure with mouse support. An on-line help is available for all input data.
SPARKS comes with a comprehensive Users Manual with detailed illustrations of
its models. Structured output from SPARKS contains several measures of
effectiveness (MOE) such as average time in the facility, average vehicles
parked, maximum number of vehicles parked, level of service (LOS) in terms of
probability of vehicles leaving, optimal number of parking spaces, and a new
measure called the Parking Activity Index (PAI).
SPARKS (#SPARKS) by TransSolutions Inc.
is available for $395 at LOS 6. A demonstration disk (#SPARKS.DEM) is available
Traffic Barrier Hardware Datasets
(TBHD) containing the materials incorporated in the 1995 publication A
Guide to Standardized Highway Barrier Hardware is available in CAD and
wordprocessor formats. This guide supersedes the 1979 publication A Guide to
Standardized Highway Barrier Rail Hardware, published jointly by the American
Association of State Highway and Transportation Officials (AASHTO), the
American Road and Transportation Builder's Association (ARTBA), and the
Association of General Contractors (AGC). This Guide contains drawings and
specifications for roadside safety appurtenances. The designs included are
those most widely used and therefore the most logical systems and components
for standardization. Proprietary items are included in this Guide for the
convenience of users, but this does not confer or imply any approval by AASHTO,
ARTBA, AGC, or the FHWA. The proprietary materials were provided by the
manufacturers for the convenience of highway designers.
The CAD and wordprocessor datasets are
believed to be useful in updating design, installation, or maintenance
practices to all members of the roadside safety community, including state
engineers, consultants, manufacturers of hardware, installation contractors,
and researchers. Since the 1979 version of the standard hardware guide was
published, three issues have made revising the guide necessary. First,
researchers, designers, and manufacturers were very active during the past
decade designing new hardware and improving old designs. As a result, a large
number of new components and systems that are now in common use were not
represented in the guide. Second, many components and systems have become
obsolete and are seldom used today, so they should be removed from the guide.
Third, the Federal mandate to use the International System (SI) of units has
necessitated a fresh look at standardizing components and converting dimensions
and specifications to the SI unit system.
The drawings for the hardware and
systems in this guide were produced using Intergraph Microstation version 5.
The text specifications were produced using WordPerfect 5.1.
This revised guide includes not only
components of barriers but drawings and specifications for common barrier
systems. Some of the details shown in this guide have been revised from earlier
details in the belief that doing so would result in more balanced and versatile
designs. Every effort has been made to assure the correctness of the drawings
and specifications at the time of publication, but a designer wishing to use
details in this guide should assure themselves of the geometric and structural
adequacy of the design. Citations to the roadside safety literature have been
provided so designers may search out the test results and become familiar with
the development of each barrier system.
This Guide is organized into five
sections. The first section, including this subsection, contains the
introductory material, tables of contents, cross references, and general
information. The next three sections contain drawings and specifications of
fastener, post, and rail components. The last section contains drawings of
barrier systems. The barrier system drawings and specifications show how the
components shown in the fastener, post, and rail sections of the guide can be
assembled to produce a variety of barrier systems. Fasteners include bolts,
nuts, and washers. Post components are those parts that serve as guardrail and
bridge rail posts and parts connected to them. Soil plates and guardrail post
blockouts are classified as post components as well as the actual post itself.
Rail elements include the parts required to splice rail elements together and
special elements like those used in terminals, as well as the actual rails
themselves. Each component has been assigned a unique designator that
identifies the component and also serves as a page number, with components
being arranged alphabetically by designator. There are two indices in the guide
that can be used to find a component or system. The first index
cross-references the common name of the components and systems by their
designator. The second index contains parts that were in the 1979 version. This
list is cross-referenced by common name, the designator used in the 1979 guide,
and the designator used in the present guide.
The guide has been produced totally in
the International System (SI) of units. All length dimensions in this guide are
in millimeters (mm), the units of stress are Mega-Pascals (MPa), the units of
force are Newtons (N), and units of mass are kilograms (kg). Units of length
are not shown on the drawings since all dimensions are in millimeters.
Customary weights of pounds (lbs) have been converted to the SI mass unit of
kilograms (kg). All the components and systems shown in this guide where
originally developed in the foot-pound-second system and have been converted
into their present form. Dimensions were converted and rounded as suggested in
AASHTO R1-91 I (ASTM E 380-89a).
The materials in this Guide represent
the accumulated experience of the roadside safety hardware community gained
over the past thirty years. Some of the systems shown in this Guide were
designed prior to any formal crash testing criteria and warranting guidelines.
Others have been developed using the most recently published crash testing and
evaluation criteria. Essentially all of the systems shown in this guide have
been crash tested although many have not been crash tested according to the
most recent testing recommendations.
Traffic Barrier Hardware Datasets
(#TBHD) is available for $20 at LOS 5. The printed document is being sold by
WCHMAP is a mapping program
that creates isolated arterial, or network input files for NETSIM, TRANSYT-7F,
and EVIPAS from data that is entered into the WHICH program. WHICH
intersections may be appended or joined to the north, south, east, or west to
provide powerful analysis of large arterials or networks in a fraction of the
original time. In addition to pretimed control, WCHMAP provides access to
programs that explicitly analyze and optimize actuated control, with detector
configurations and actuated signal settins mapped from WHICH's "Miscellaneous
Data" screen. The WHICH program already maps data to programs such as the AAP,
HCS, SOAP, and SIDRA, providing fast and powerful analysis of a common
WHICH Map version 1.0 (#WCHMAP), by
David Hale is available for $100 at LOS 6.
Days Off Calculator , the
transit industry's standard freeware rostering package, has been updated with
its first-ever Windows version and a new DOS version.
Like their predecessors, Version 2.1 for
DOS and Version 1.0 for Windows make it easy to work out off-day combinations
when setting up operator runs, traditionally a difficult and inexact
New features include:
An improved and more flexible
technology for maximizing consecutive days off.
An assignment list report that shows, for each day of the week, the grouping
of runs into combinations.
A name list feature that allows names of operators to be listed in reports
with the runs and combinations they work.
Immediate calculation: results are displayed as soon as inputs are entered.
In the Windows version, copying of reports and help screens to the Windows
clipboard, and a "keyboard" on-screen that allows data input using only the
Easy testing of the effect of varying the number of runs on any given day, by
pressing the greater than and less-than arrow keys to increase and decrease the
number of runs input.
A reduction in the amount of RAM needed to run the DOS version.
With either version, the user needs only
to enter the number of operator runs on each of the 7 days of the week, and the
calculator provides an optimized solution on screen and a variety of reports on
request. The calculator can handle varying numbers of runs on different
weekdays, and works with 4-day, 5-day, or 6-day workweeks. Though designed for
operator rostering, it's useful in any crew-scheduling applications, transit or
otherwise, including retail operations, maintenance, telephone coverage, field
supervisors, assembly lines, and construction.
The calculator continues to be offered
free of charge by developer David Grant of Transit Operations Planning and
Scheduling, a consulting firm based in New Orleans. Asked why he's giving away
the software, Grant said it's to let people know about the company, which
specializes in all phases of the transit route and schedule development
process. Grant has completed many successful projects in which schedule and
route changes have increased ridership, sometimes despite a decrease in service
provided. The firm also provides organization of ridership checking programs;
analysis of ridership data; preparation of public timetables and route maps;
writing and design of informational pieces on service changes; and compilation
of Section 15 operating data.
For a free program disk containing both
DOS and Windows versions, write to Transit Operations Planning and Scheduling,
5545 Bundy Road, Suite 370, New Orleans, Louisiana 70127-4821, USA; call (504)
244-9234; or fax your request to (504) 245-1627. The software runs on
IBM-compatible personal computers, and comes on a 1.44 MB 3 1/2-inch disk
unless you specify otherwise. Days Off Calculator (#DAYS) is also available at
LOS 4 from McTrans.
INTEGRATION Version 2.0 represents
a significant upgrade to the 10-year old combined traffic simulation and
assignment model. Some of the new features include the use of integrated
freeway and arterial car following, lane changing and gap acceptance logic, as
well as the opportunity to model incidents, HOV restrictions and turning
prohibitions at the individual lane level.
These new features permit detailed micro
analysis of freeways, weaving areas, on- and off-ramp and ramp meters, as well
as the explicit modeling of two-way and four-way stops, advanced green
indications and right-turn-on-red. In addition to the updated user's manual, a
brand new 200-page tutorial and reference manual are now available, which
describes and discusses in excess of 30 sample networks that are provided to
illustrate the impact of the new features.
Beyond fuel consumption and vehicle
emissions statistics, the new model version can also generate lane-by-lane
detector outputs, link- or trip-based probe reports, and statistics on the
total number of stops, lane changes and takeover (passing) maneuvers in the
network. Special features have also been added to model toll plazas,
roundabouts and HOV facilities, as well various attributes of the National ITS
Architecture. Finally, the model has been generalized to consider the capacity
analyses associated with virtually the entire range of facilities described in
Chapters 3-6 and 9-11 of the 1994 U.S. Highway Capacity Manual.
The small/academic version of
INTEGRATION, that is available through McTrans, has been expanded to
consider a network consisting of 250 links, nodes and O-D demand loadings, as
well as 25,000 vehicles and 25 traffic signals or zones. at a cost of $375. It
requires a 486DX type of computer with 8MB of RAM and VGA monitor. Larger
versions, that can run in more RAM or on parallel computers can handle up to
10,000 links and 500,000 vehicles, and are directly available from M. Van Aerde
& Associates, Ltd. at (613) 547-5481.
INTEGRATION, small version, (#INTEG) is
available from McTrans at LOS 6 for $395
MacStorm Sewer is a complete
program for the design and analysis of storm sewer systems. The program will
compute flows through storm sewers by the rational method utilizing the Florida
Department of Transportation (FDOT) rainfall intensity curves, the Santa
Barbara Urban Hydrograph or SCS Unit Hydrograph methods. Flows will be computed
from inputted areas (three different c-values or CN-values per area) and time
of concentrations. The hydraulic gradient is computed by analysis of pressure
and open channel flow regimes based on the physical conditions of a given
system. Output from the program can be displayed identically to the typical
FDOT storm sewer tabulation form with all pertinent information calculated and
shown as appropriate. Metric units are supported with file conversion between
English and Metric units. Files created with FDOT PCDRAIN can be imported by
the program for analysis.
MacStorm Sewer has additional features
to aid in the preparation of construction drawings for the highway designer.
The ability to create drainage structures based on the data entered in the
storm sewer tabulation form and interface with all CADD application through the
creation of DXF files. These structure DXF files are fully annotated and
complete (minus the proposed cross section). In addition drawing of profiles
and creation of GeoPak input files for plan view can be created from the same
structures data base. The program comes with many FDOT structures however
structures can be added by the user as required to customize on an as needed
MacStorm Sewer (#MACSTORM.MAC) Version
3.1 by Kenneth Kneil is offered at LOS 7 for $550.
SIDRA 4.1 is a major new
version incorporating a large number of significant enhancements to traffic
models for all types of intersection, based on new ARRB research as well as on
the new 1994 edition of the US Highway Capacity Manual. New traffic models
provide complete and consistent modelling of capacity and traffic performance
for different intersection types. New features of SIDRA 4.1 are listed below:
Improved INTERSECTION TYPE menu
(allows signalized and unsignalized intersection features to be specified
ROUNDABOUT CAPACITY model enhancement to allow for the effects of
origin-destination pattern, proportion queued and lane usage on approach roads
(improved modeling of capacities, especially for multi-lane roundabouts with
heavy and unbalanced flows).
ALL-WAY STOP SIGN CONTROL
NEW FORMULAE for all types of intersection (details in SIDRA output):
back of queue: average 90th, 95th and 98th percentile queues
proportion queued (stopped)
queue move-up rate
effective stop rate
GEOMETRIC DELAY and STOP models included for all types of intersection.
New GAP-ACCEPTANCE CAPACITY formula (opposed left and right turns at signals,
movements at sign-controlled intersections, roundabout entry streams).
All capacity and performance models based on a BUNCHED EXPONENTIAL
DISTRIBUTION of arrival headways calibrated using real-life and simulation
gap-acceptance capacities (opposed left and right turns at signals, movements
at sign-controlled intersections, roundabout entry streams) geometric delays
operating cost, fuel consumption, and pollutant emissions.
An improved PROGRESSION FACTORS method for modelling platooned arrivals
generated by coordinated signals (HCM 94 method); also actuated control
Updated BASIC SATURATION FLOWS and saturation flow adjustment factors.
Improved handling of PEAK FLOW METHOD.
Improved SHORT LANE model application for roundabouts and sign-controlled
New SIDRA CONFIGURATION utility (CONFIG).
New method to run SIDRA treating the current directory as the data directory
Improved graphical output display module (GOSID) using ATSIS (Australian
Transport Software Integration System) common data file format. GOSID is now an
independent program that can be linked to other software using ATSIS file
New mono screen facility in GOSID for better picture printing.
Extensive input, output and menu system improvements.
New comprehensive USER GUIDE in one volume.
SIDRA version 4.1 (#SIDRA) available
from McTrans at LOS 6.
SYNCHRO by Traffic Synchro
Software has been upgraded to version 2.0. New features in this version include
a full implementation of Chapter 9 of the 1994 Highway Capacity Manual. Synchro
has a Time Space Diagram that shows individual vehicles moving and stopping.
All windows and reports were adjusted to provide more information and be easier
to use. Map windows now show street names and can show a background map in
Autocad format. A new calculation method was added to aid engineers in deciding
which intersections to coordinate and which to operate independently.
Synchro Professional automatically
creates input files for TRAF-NETSIM, (as well as PASSER-II and TRANSYT-7F,) for
simulating traffic flows.
Traffic Synchro Software also has USGS
Street Maps for the entire continental US in Autocad format, for use with
Synchro and Autocad. These maps make great looking presentations and can be
used for vicinity maps in engineering plans.
For a free demonstration disk, contact
Traffic Synchro Software at (800) 379-6247, Fax (510) 526-5199. SYNCHRO version
2.0 (#SYNCRO) is available from McTrans at LOS 7.