Comment Re:Simulations... (Score 1) 615
When simulating the traffic operations we use one standard driver. This driver represents the 85th percentile of the driving public. The reaction time that is used in anlysis is 2.5 seconds. This is the value that is endorsed by the American Association of State Highway and Transportation Officals (AASHTO). This is the time it takes the driver to begin taking action. This is simply a statistically significant time which is representative of 90% of the population. In cases where needed, such a retirement village for example, the reaction time may be raised to better represent the population in that location. Also in the case of pedestrians a travel speed of 4.93 ft/sec is used this also may be adjusted depending on the application.
This means that a traffic engineer in California, New Jersey and Florida will most likely be designing for the same driver.
Some of the modeling software that I use is a program called Synchro, which helps coordinate signal groups and show the flows on all links in the system, and a program called HCS which helps time the signals in the best way possible for the entire driving public.
Hope this was what you were looking for.
This means that a traffic engineer in California, New Jersey and Florida will most likely be designing for the same driver.
Some of the modeling software that I use is a program called Synchro, which helps coordinate signal groups and show the flows on all links in the system, and a program called HCS which helps time the signals in the best way possible for the entire driving public.
Hope this was what you were looking for.
