Version History
STREETS
- Updates the lane utilization factor calculation for a DDI
- Adds F1 help topics for safety and emission related optimization inputs
ROUNDABOUTS
- Corrects the LOS threshold A for segment analysis
TWSC
- Corrects capacity calculation for LR and LTR configuration with flared approach
- Adds a flow balance check for RCUT and its conventional intersection
- Corrects usages of probability of queue-free state in calculations when there is a major-street shared LT lane or a short left-turn pocket
- Corrects the proportion of time blocked value usage for two stage crossing cases
- Corrects the determination logic for T-intersection and related calculation
- Changes the default value of critical headway from 0 to 2 seconds
- Corrects the movement delay and LOS display issue for major-street right turns
FREEWAYS
- Adds error checking and information button and popup to provide real time error checking messages
- Implements auto segmentation to code a facility from sections
- Allows opening and saving CSV files
- Adds the ability to view service volume tables for single-segment analyses
- Updates the facility graph to display colors, legends and tool tips
- Adds new charts such as volume served, density and speed distributions
- Implements printing all single segment reports in a facility
- Updates the heat map report design
- Allows print and print preview for heat map report
- Adds converting text and formatted reports to XPS files from command line
- Corrects weaving capacity in oversaturated calculation
- Corrects LCRR range for two-sided weave analysis
- Corrects equations for managed lane speed calculation and saving issue
- Reliability Analysis: adds new charts to display speed and density distributions
SERVICE VOLUMES
- Corrects ramp service volume calculation
- Adds converting text and formatted reports to XPS files on command lines
MUTCD Signal Warrants
- Replaces the old Warrants module with a completely redesigned newer version
STREETS
- Adds a larger and direction-oriented interchange graphic as the second page to the interchanges report
- Corrects the interchange O-D movement LOS computation for some cases by correctly applying all of the ETT, v/c > 1 and Rq > 1 conditions
- Improves the display of text inputs on report for the inputs containing -1
- Corrects the right-turn overlap phase display by showing it only when an exclusive right-turn lane exists
- Removes the Heavy Vehicle Equivalency row of inputs
- Corrects the standard deviation and 95th% confidence interval calculations in reliability analysis for multiple replication files
ROUNDABOUTS
- Corrects the delay due to turning vehicles calculation
- Adds command line functionality to batch process files, print text reports, update old files etc.
- Corrects the usage of intersection/segment in text report
TWSC
- Improves program speed and accuracy by completely revamping the internal architecture of this module
- Expedites coding of MUT/RCUT crossover intersections by adding a checkbox to designate a crossover intersection
- Implements and displays approach and intersection ETT and LOS calculations for RCUT intersections
- Adds command line functionality to batch process files, print text reports, update old files etc.
- Makes the headway and percent thrus using shared lane inputs user entered or calculated
- Adds error checking and information button and popup to provide realtime error checking messages
AWSC
- Displays a PHF message box on importing *.xhu files
- Adds command line functionality to batch process files, print text reports, update old files etc.
FREEWAYS
- Includes several improvements to the facility graph for ramp lanes, managed lanes, left-side ramps, two-sided weave etc.
- Adds segment selection and navigation through the facility graph
- Highlights selected segment in the facility graph
- Updates the facility text report to show additional facility-wide outputs such as VMT, VHT and VHD
- Adds the full view option for single-segment analyses to view inputs and report at the same time
- Improves animation of left-side ramps and two-sided weaving segments
- Corrects the display of number of segments in the facility text report
- Corrects equations for Merge/Diverge analyses with more than four freeway lanes
- Sets accel/decel lane lengths to 1500 when calculated length is larger than 1500 in Merge/Diverge
- Reliability Analysis: Corrects calculation of incidents when using the “Calculated Crash Frequency” option
- Reliability Analysis: Improves randomness of weather event assignment
- Reliability Analysis: Corrects Special Event analysis and adds option for users to use a date to add a special event
- Reliability Analysis: Replaces TTImax with TTI95 to more closely match HCM reporting guidelines
MULTILANE
- Adds the ability to model Bicycle LOS procedure
- Corrects the issue with remembering report zoom level
HIGHWAY SAFETY SOFTWARE (HSS)
- Adds the Empirical Bayes (EB) analysis capability
- Adds the ability to perform economic analysis
SERVICE VOLUMES
- Imports data from Freeways (XUF) files to eliminate the need to code the data twice
- Updates reports to display the full service volume tables
- Adds the full view option to view inputs and report at the same time
STREETS
- Adds a new heat map report
- Adds safety and emissions based signal-timing optimization capabilities
- Updates the Pedestrian, Bicycle and Transit procedure implementation to use the HCM6 equations
- Allows buses to be coded with or without the presence of right-turn lanes
- Improves the automatic refreshing of reports
ROUNDABOUTS
- Corrects the animation issue related to certain file names
TWSC
- Adds step-10 section to text report for all cases
- Corrects shared capacity calculation for files with a flared lane present
AWSC
- Corrects the issue with remembering report zoom level
FREEWAYS
- Adds the ability to include special events in travel time reliability analysis
- Improves the CSV file functionality
- Allows the animation of files containing multiple segments and multiple time periods
- Adds the ability to see detailed reports for individual segments in a facility analysis
- Corrects the dispay of missing weaving demand data inputs for screens with low resolution
- Displays a new segment graphic on segment details screen
MULTILANE
- Adds the ability to model Bicycle LOS procedure
- Corrects the issue with remembering report zoom level
HIGHWAY SAFETY SOFTWARE (HSS)
- Adds the ability to model Freeway and Ramp safety analyses
- Adds formatted reports
- Implements F1 help feature
TOOLS
- Adds a new HCS Service Volumes module
STREETS
- Adds a new intersection summary report
- Corrects missing timing data issue for certain uncoordinated intersection files
- Adds the ability to model side street split phasing with right turn overlap
- Updates the icon for the Streets Reliability module
ROUNDABOUTS
- Adds Roundabout Segment analysis
- Adds one-click CORSIM animation functionality
TWSC
- Adds one-click CORSIM animation functionality
- Corrects headway default value setting based on lane configuration
AWSC
- Adds one-click CORSIM animation functionality
FREEWAYS
- Implements travel time reliability for freeway facilities
- Adds one-click CORSIM animation functionality for single-period files
- Improves the interoperability with MS Excel thru CSV file import and export
- Adds a new color-coded Heat Map report
- Implements the mixed-flow model for composite grades
- Improves the weaving segment input page
TOOLS
- Adds a new Highway Safety Software module
STREETS
- Adds phasing and timing summary report
- Corrects a Lead/Lag issue for major street left turns for certain cases
- Adds general data to text reports
ROUNDABOUTS
- Adds fields for Passenger Car Equivalent
FREEWAYS
- Adds cross-weaving effect for a Merge/Diverge analysis
- Adds events and adjustment factors to Facility text report
- Adds Proportion of Flow Outside 4th Lane field for a Merge/Diverge analysis when necessary
- Adds range display when hovering over inputs
- Corrects display of number of managed lanes in Facility Graphic
STREETS
- Adds the ability to model Diverging Diamond Interchanges (DDI)
- Adds interchange O-D graphics to the interchanges report
- Updates the Segment Auto LOS threshold for LOS A
- Adds the ability to export Signals and Streets multiple-period results to CSV files
- Updates the layout of the Streets multiple-period text report
- Adds the graphical summary to the full report
FREEWAYS
- Adds import/export demand data features
- Auto calculates total ramp density and interchange density for a facility
- Adds Managed Lanes analysis for the Merge, Diverge and Weaving segments
- Adds facility geometry graphic
STREETS
- Adds analysis of alternative intersections (MUT, RCUT and DLT)
- Implements travel time reliability for urban street facilities
- Incorporates unsignalized movements into signalized intersection delay averages
- Modifies the grade and heavy vehicle adjustments to saturation flow rate
- Adds parking activity and calibration factor to base free-flow speed computations
- Changes LOS A threshold in urban streets
ROUNDABOUTS
- Updates capacity equations to reflect latest research and increased capacity for all scenarios
FREEWAYS
- Includes completely redesigned module to provide for segment and facility analyses within the same environment
- Adds modeling of managed lanes for continuous access, buffer and barrier designs
- Incorporates new truck procedures
- Adds capacity and speed adjustment factors for weather, incidents and driver population
- Uses revised speed flow curves
- Adds cross-weave analysis for on- and off-ramps near managed lane access points
- Adds density computed across all lanes in merge and diverge analyses
MULTILANE
- Includes completely redesigned module with a new user interface and modern architecture
- Implements the expansion of free-flow speed to 65 and 70 mi/h
- Accomodates density of 45 pc/mi/ln as the LOS E/F boundary
- Incorporates new truck procedures
Note: HCS7 implements the sixth edition of the Highway Capacity Manual.
FACILITIES
- Completely redesigned module with a new user interface and modern architecture
AWSC
- Completely redesigned module with a new user interface and modern architecture
- Three-lane approaches modeled and 95th Percentile queue results displayed
TWSC
- Implemented Pedestrian LOS procedure
- Added code to handle foreign cultures and language format
- Corrected display of Flow Rate and v/c ratio for major street left turn for the left-thru shared lane cases
- Added keyboard shortcuts for Back and Next buttons
ROUNDABOUTS
- Added code to handle foreign cultures and language format
- Updated Roundabouts.chm help file
- Added keyboard shortcuts for Back and Next buttons
STREETS
- Added a new signalized intersection graphical summary report
ROUNDABOUTS
- Completely redesigned new user interface with two data entry modes
FACILITIES
- Corrected a Ramp Density issue for certain datasets
- Expanded the range allowed for ramp demand values to accommodate two-lane weaving
- Corrected a report issue that caused segment LOS table to be empty if the file contained exactly 15 segments
TWSC
- Removed major streets LOS from both reports
- Made intersection delay appear as blank on the text report when the capacity/delay for an existing approach is invalid
- Corrected approach delay calculation for LT TR configuration on minor street
- Several minor user interface improvements and calculation corrections including shared-lane capacity calculations
- Corrected Left-only median type operations
STREETS
- Few minor user interface improvements
AWSC
- Added the computation of 95th Percentile Queue by lane as prescribed in the HCM 2010
TWOLANE
- Revised computation of capacity values when opposing flows dictate other than 1700
TWSC
- Completely redesigned user interface with two data entry modes
- Up to six lanes on major street now accommodated including U-turns
- Proportion time blocked incorporated from Streets for upstream signals
- Short lane modeling added to the Rank 1 delay computations
STREETS
- Added a new Interchanges Text Report to show intermediate results
- Several minor corrections including removal of a redundant File Save As dialog
- Corrected a problem when optimizing some multiple period datasets
- Several minor improvements including results in red when QSR exceeds 1
FACILITIES
- Corrected a formatted report issue with weaving lane change labels
- Updated images on Weaving Input Data screen to better reflect segment lengths
STREETS
- Added Segment Travel Time to the Segment Results Report
- Enabled editing red clearance and yellow time for more scenarios
- Corrected the range for Approach Width for work zones
- Updated the XUS file for additional outputs and improved its readability
- Corrected issues with lane configuration, grade and lag phase coding for some data sets
QUICK STREETS
- Added a new File Save feature
- Improved tool tips and updated the Users Guide
- Modified unit labels for consistency with Streets
STREETS
- Added a Phasing Wizard button to generate a dialog for guided phase coding
- Added a Pre-Timed Signal checkbox to define pre-timed operations with one-click
- Implemented Closely Spaced Intersections for Interchange Ramps Terminals analysis
- plemented adding and deleting any intersection within the urban street
- Updated display settings to better support Windows 8 defaults
- Implemented Saturation Flow Adjustment Factor for Work Zones
- Updated the Turn Radius inputs to compute Turn Equivalency Factors per lane group
- Added Quick Streets (Excel Add-in) to facilitate importing count data from other sources
FACILITIES
- Implemented HCM update to add density criterion for LOS F to weaving segment analysis
- Updated the startup screen to improve file access functionality
- Fixed issue showing LOS based on density with d/c > 1 for some data sets
- Resolved report display issue that required a user to view overall results first
- Corrected Weaving data input screen related to Short Length and Weave Configuration
WEAVING
- Implemented HCM update to add density criterion for LOS F to weaving segment analysis
STREETS
- Implemented HCM 2010 Interchange Ramp Terminals (Chapter 22) procedures
- Added Reports for Interchange Ramp Terminals and Multiple Period Analysis
- Added pedestrian crossings and right-turn overlap phasing to Phasing View
- Improved the Streets start-up screen and added a Video Tutorial to Help
ROUNDABOUTS
- Added Quick Entry for graphic lane configuration coding
STREETS
- Updated animation converter to support foreign locales
ROUNDABOUTS
- Corrected pedestrian adjustment to capacity for two-lane approaches
TWSC
- Reverted to version 5.6 temporarily
FACILITIES
- Added the Quick Animation feature
- Miscellaneous updates and corrections
STREETS
- Implemented an HCQS change for certain permitted, shared left-turn situations
- Added a new formatted report for access points
- Added a peak hour factor for access points
- Implemented the ability to hide multimodal outputs
- Time-space diagram corrections to the slope of progression bands
ROUNDABOUTS
- Corrected capacity computations for certain situations
- Modified lane assignments for certain situations
- Miscellaneous user-interface corrections
TWSC
- Updated to add six-lane major street analysis including U-turns
SIGNALS
- Signals analysis is now performed within the new Streets module
STREETS
-
- New module
- Coordination & access points
- Multimodal analysis for pedestrian, bicycle and transit level of service
- Visual mode and tabular data
- HCM based internal genetic algorithm optimization
- Improved shared-plus-exclusive lane handling
- Dynamic time-space diagram
- Flow profile diagram
- Auto calculate and force calculate buttons to control speed of data input
TWOLANE
-
- Included a PFFS (Percent Free Flow Speed) and adjusted LOS for passing lane analysis
- Fixed passing lane values for when the passing lane becomes truncated
- Adjusted the Access Point Density to not “correct” itself to a default value
FACILITIES
- New module
SIGNALS
- Improved loading and refreshing of the screen
- Corrected reports showing single lane data in the left or right columns
- Updated help file to be more comprehensive
- Corrected some printing issues
ROUNDABOUTS
- Corrected some lane configuration issues
- Included new template file that allows animating a two-lane roundabout
WEAVING
- Corrected saving and loading of two-sided weaving in datasets
- Corrected weave.rpt file that had the v_RF and v_FR labels switched in the “Conversions to pc/h Under Base Conditions” portion of the Formatted Report
TWOLANE
- Corrected capacity computations for certain situations
- Added help file
HEAVY VEHICLES
- Updated Trucks, Buses and RVs ranges (0% to 100% replaces 0% to 25%) for Freeways, Multilane and Ramps