a day-by-day evolutionary approach, the TRANSIMS model investigated mobility impacts, travel pattern changes, and departure time shifts with each freeway segment closure.
Using the TRANSIMS model, the researchers were able to analyze travel pattern changes as well as travel reliability.
This project demonstrated that TRANSIMS is a viable tool for traffic analysis of work zones," says Brian Gardner, leader of the transportation systems performance team in FHWA's Office of Planning and manager of FHWA's TRANSIMS program.
The TranSim transmission simulator -- which teaches new and experienced drivers the proper way to shift a variety of transmissions, over a wide range of grades while pulling an assortment of loads -- provides instantaneous miles-per-gallon feedback to drivers and trainers, thus helping them improve fuel economy through better shifting.
According to Reginald Welles, president and CEO of I-Sim, training on the TranSim can help trucking companies reduce fuel costs 2 to 5 percent.
User-friendliness is a critical aspect of the TRANSIMS commercialization initiative," said Mike Bridges, who leads PricewaterhouseCoopers' team on the project.
The TRANSIMS software was developed using technology created for national security purposes.
According to FHWA, TRANSIMS is expected to produce high-quality detailed simulations that will permit planners and citizens to better understand the implications of transportation policy choices.
FHWA said that TRANSIMS, developed at a cost of $25 million, represents a major advance in travel forecasting procedures.
The TRANSIMS design has been driven by legislative and analytical requirements that exceed the capabilities of current models and methodologies.
Department of Transportation (DOT) has provided most of the funding for the development of TRANSIMS.
is an ambitious project that will take years to complete and will require the cooperative efforts of modelers both inside and outside the transportation community.