TRAFFIC MANAGEMENT
As indicated earlier, in the U.S., the interstate highway construction program started after the
Great Depression is now considered to be finished. Recent travel demand and travel capacity
projections indicate that it will no longer be possible to satisfy the growing demand for travel
through the addition of more roads. The solution appears to be to improve travel capacity
through better management of the existing road infrastructure, along with tnmor: local road
enhancements. Advanced Traffic Management Systems (ATMS) are thus concerned with:
l Incident Detection and Management
l Demand Management
l Traffic Network Monitoring
0 Traffic Control
l Parking Management
* Construction Management
o Electronic Toll Collection
The objectives of each of these areas of traffic management are:
l Incident Detection and Management
- Monitor traffic flow.
Detect incidents via surveillance, traveler notification, police reports, and network
monitoring.
- Provide control strategies, information dissemination, diversion plans, recommenda-
tions to motorists, specialized emergency vehicle management strategies.
l Demand Management
- Maintain roadway system level of performance.
- Disseminate trip planning data.
l Traffic Network Monitoring
- Use sensors and predictive models.
- Locate traffic disturbances.
- Monitor traffic signals, message signs, etc.
0 Traffic Control
- Provide adaptive signal control.
- Control lane use and access.
- Disseminate information for trip planning.
l Parking Management
-
Disseminate data on parking facility availability, rates, and accessibility.
l Construction Management
- Coordinate activity to minimize impact on traffic flow.
- Disseminate data for trip planning.
l Electronic Toll Collection
- Identify vehicle using AVI.
- Debit prepaid account, debit card, etc.