Traffic Software Integrated System – Corridor Simulation

Traffic Software Integrated System – Corridor Simulation

TSIS is an integrated modeling environment that enables users to conduct traffic operations analysis. Built using a component architecture, TSIS is a toolbox that allows the user to define and manage traffic analysis projects, model traffic networks and create inputs for traffic simulation analysis, run traffic simulation and interpret the results of those models.

CORSIM is a microscopic traffic simulation capable of modeling surface streets, freeways, highways and integrated networks, including segments, weaves, merges/diverges, and unsignalized and signalized intersection stop/yield sign, traffic signals. It simulates traffic and traffic control systems using research-backed and stablished vehicle and driver behavior models.

According to the Federal Highway Administration (FHWA), TSIS-CORSIM has been used by FHWA for conducting research and applied by thousands of practitioners and researchers worldwide over the past 30 years, embodying a wealth of experience and maturity. Volume 4 of the Traffic Analysis Toolbox (CORSIM Application Guidelines) is available on the FHWA traffic analysis tools home page:  fhwa.dot.gov/trafficanalysistools/corsim.

Examples of TSIS-CORSIM Applications

TSIS-CORSIM can model facilities and networks beyond the scope of the Highway Capacity Manual procedures, including:

  • Urban street grid
  • Spatial and temporal effects of congestion
  • Interactions between freeways and urban streets
  • Alternative intersections
  • Routing (dynamic traffic assignment – DTA)
  • Interruptions to traffic flow (e.g., rail crossing)
  • Effects of incidents on traffic flow
  • Work zones and lane closures on freeways and arterials
  • Active Traffic Management analyses for arterials and freeways (e.g., ramp metering)
  • Managed lanes including High Occupancy Vehicles (HOV) and High Occupancy Toll (HOT) lanes
  • Signal Timing Optimization assessment and testing in conjunction with TRANSYT-7F (included in TSIS) and HCS and algorithms

Microscopic Traffic Simulation

CORSIM is a microscopic traffic simulation tool, which replicates driver behavior and the interaction between vehicles individually in small time steps within a model network. In a microsimulation tool, many parameters are stochastic and realistic, and the tool is able to simulate the interaction between different network elements, such as urban arterials and freeways.

Extraordinary Support

We pride ourselves for providing support to our customers in an individualized way. Our customers only need to let us know what their questions are or where they are stopped in their analyses, and the McTrans experts will get back to them to connect and offer suggestions and answers to questions. McTrans currently has an engineering team of half a dozen engineering experts, some serving at the TRB Committee on Highway Capacity and Quality of Service and highly involved with TRB simulation committees and ITE SimCap. Some have devoted more than a decade modeling demand and traffic for engineering consultancy and national-level research projects.

Contact us via email at mctrans@ce.ufl.edu or call us at 800-226-1013.