摘要: |
The rapidly growing congestion on highways, especially urban freeways, is demanding that transportation engineers provide innovative solutions for safe and effective management of highway networks. Real-time surveillance and monitoring is becoming essential in order to meet these goals. The real-time information provides motorists opportunities to make informed decisions. It is also used to implement traffic management applications and strategies for optimizing network productivity. Real-time travel time is an alternative being used by several agencies. The objective of this paper is was to improve the understanding of current practices related to real-time travel time data collection, applications, issues, and effectiveness. In addition to an extensive literature review, a survey of thirteen transportation agencies was conducted. The survey results indicate that motorists like this information and would like to have more reliability, coverage, and predictability. |