Define traffic assignment in transportation system and discuss the major aims of traffic assignment?
It is the method of assigning a set of trip interchange data to a specified transportation system. The vehicular movements that may be observed when demands in the trip matrices are satisfied are reproduced here.
The main aims of traffic assignment are to: • estimate the volume of traffic on a network. • estimate the turning movements at intersections.
• estimate cost between the origin and destination of a trip.
• obtain average network measures, such as total distance covered, total time take, and so on
• estimate travel cost and time for a zone-to-zone trip.
• obtain link flows and identify the congested links.
• estimate routes to be used between each origin-destination (O-D) pair
• analyse each O-D pair that uses a particular path or link.