The Highway Capacity Software faithfully implements methods and procedures documented in the Highway Capacity Manual (HCM). It is capable of performing both planning and operational level analyses for surface streets, including intersections, freeways, arterials, etc. The underlying HCS model utilizes a multi-million dollar worth of research in traffic engineering along with a significant peer review process both at the research level and TRB committee level for HCM adoption.
The HCM uses a macroscopic approach to model traffic on the surface streets. As such, the use of HCS requires relatively fewer inputs to be collected and time to be spent on modeling and calibrating the facilities. This brings an economic aspect for the users to be able to model traffic and predict a variety of performance measures for defined alternatives.
It is over 35 years that HCS faithfully implements methods in the HCM. When any updates become available for HCM, the McTrans team implements the updates and releases a newer version of HCS. This enables its users to access the latest updates and ensures that they are using the latest methods in the HCM. Currently, about 15,000 users worldwide are using HCS!