Travel demand and traffic simulation modeling

We are the leading micro-simulation consultant in the world. We have extensive experiences using the most popular microsimulation packages, including Paramics, Transmodeler, and Vissim. As subcontractors, we extensively involved in Caltrans CSMP projects and was in charge of building microscopic traffic simulation models and testing scenrios. We also have experiences on using micro-simulation in various applications based on more than ten-years' academic research.

• Traffic control
• ITS evaluation
• Policy investigation
• Operational improvement
• Corridor management planning
• Emission
• Construction management
• TMC operator training

CLR has a strong team specialized in Travel Demand Modeling. We build travel models from scratch using travel survey data. We are proficient at several modeling tools including TransCAD, Cube Voyager, VISUM and EMME. Currently in Orange County, we are engaged in several Caltrans Corridor System Management Plan (CSMP) projects (including SR-91, SR-57, SR-22, and I-405) and each of these projects require substantial travel demand modeling. We maintain a customized OCTAM model, which was built on the TransCAD platform, and includes a variety of added components that are specialized for corridor studies.

Advanced sensor technologies

The conventional traffic sensors typically provide volume, occupancy, vehicle presence and speed data. Vehicle reidentification is an emerging advanced sensor technology that aims to provide more data for travel information, travel time estimation, vehicle clasification, emission, and origin-destination (OD) estimation applications. Our knowledge and experiences on advanced sensor technologies are based on more than ten-years' academic research. Click here to read more about vehicle reidentification. Click here for the recent research progress, led by Professor Stephen Ritchie, at University of California Irvine.

Software development

We provide services on the development of plugins or addons for modeling software including Paramics, TransModeler and Vissim and TransCAD. We are the major microsimulation (including Paramics, TransModeler, and Vissim) plugin developer in the world.The pugins we have developed and used by many consultants, universities, and governments.

We are very familiar with various programming languages, including C, C++, C#, Java, Javascript, Delphi, and VB.

Trainings

We offer travel demand modeling and mircoscopic traffic simulation related courses, workshops and trainings for students, public agency, and consultants. Our staff are currently in charge of user supports of Paramics, Cube, Synchro, Commuter in the Greater China area.