DYNASMART-P version 1.3.0

Dynamic Network Assignment-Simulation Model for Advanced Roadway Telematics (Planning version)

DYNASMART-P version 1.3.0, released by the Federal Highway Administration through McTrans in February 2007, provides many new features and enhancements. These include:

  • Convenient import of network and demand data from other planning models
  • Click-and-drag network/control creation and editing interface based on background imagery
  • Easy conversion of baseline static OD matrix to time-dependent OD matrices
  • Generation of default movements and signal control data for fast deployment
  • Improved loading and display speed for large-scale network datasets
  • Calculation and display of link- and network-level toll revenue for HOT or tolling applications
  • Easy redistribution of user classes within vehicle and path files. This allows for flexible implementation of various planning scenarios
  • Capability of modeling large networks

DYNASMART-P 1.3.0 now comes with a powerful GIS data import and network editing tool - DSPEd 1.3.0DSPEd facilitates the deployment of DYNASMART-P via click-and-drag graphical user interface as well as GIS import capability.

DYNASMART-P (#DYNA) is priced at $1750, with a limited-support version (#DYNA.UN) available for $1000.   DYNASMART-P was previously developed and maintained by researchers at the University of Maryland (UMD), and is now supported by the FHWA DYNASMART-P support team.  The fully supported version includes full technical assistance and response to specific issues.  The limited support version allows access to McTrans only, for responses to frequently asked questions.  Hardcopy help documents are not available, but electronic help documents are included within the software at no extra charge.  A single license allows the end user to install the software on any number of computers within the immediate office location.  Click here to order DYNASMART-P now!  DYNASMART-P requires Microsoft Windows.

DYNASMART-P supports transportation network planning and traffic operations decisions, including evaluation of ITS deployment options, through the use of simulation-based dynamic traffic assignment. This tool combines (1) dynamic network assignment models, used primarily in conjunction with demand forecasting procedures for planning applications, and (2) traffic simulation models, used primarily for traffic operational studies. DYNASMART-P provides the capability to model the evolution of traffic flows in a traffic network, which result from the decisions of individual travelers seeking for the best paths en-route over a given planning horizon. It overcomes many of the known limitations of static tools used in current planning practice. These limitations pertain to the types of alternative measures that may be represented and evaluated, and the policy questions that planning agencies are increasingly asked to address.

DYNASMART-P defines a new generation of transportation planning methodologies, which can interface readily with existing four step procedures, yet provides a meaningful jump in the range and type of measures that can be evaluated. Because it considers the time-varying nature of traffic flows, it is expected to produce more useful estimates of state variables such as speeds, queue lengths, delays, and congestion effects to better assess the functional and environmental impacts of a variety of traditional and emerging transportation planning measures, including the deployment of ITS and non-ITS technologies.

DYNASMART-P requires input data commonly used by the traditional traffic assignment and simulation models, particularly with regard to network representation and spatial demand loading patterns. The input data vary with the network being analyzed and the level of detail required by the user. Complexity of the network could range from a linear freeway network to an integrated network with High-Occupancy Vehicle (HOV) lanes, High-Occupancy Toll (HOT) lanes, ramp metering, transit services, possibly incidents and signal controlled intersections on surface streets. Applications to date have included metropolitan and regional networks with up to 35,000 nodes and 100,000 links, with nearly one million vehicles simulated over horizons of several hours.

DYNASMART-P produces a wide array of output information to assist users in performing detailed traffic analysis. The output report contains Measures of Effectiveness (MoEs) commonly used by traffic engineers, such as volumes, speeds, travel times, delays, etc. DYNASMART-P also produces an individual vehicle trajectory file, which is very useful for research purposes. In addition, through its intuitive graphical user interface (GUI), DYNASMART-P provides the user with the means to view simulation results and other characteristics through various graphical formats, both static and animated.

With rich built-in features, DYNASMART-P can be used to evaluate complex strategic and operational network planning decisions and to produce policy-relevant traffic assignment results for planning analyses. The potential applications include:

  • Assessing impacts of ITS and non-ITS technologies on the transportation network, such as dynamic message signs, ATIS under different information supply strategies and behavioral response scenarios, dynamic route guidance, incident management, etc.
  • Supporting decision-making for work zone planning and traffic management.
  • Evaluation of HOV lanes and HOT lanes.
  • Evaluation of different congestion pricing schemes.
  • Planning for special events and emergency situations, including some evacuation scenarios for homeland security applications.
  • Traffic assignment analyses in traditional planning functions, as well as in conjunction with activity-based and tour-based approaches.