Abstract
This paper presents a real-time traveler information system (RTIS) for Hong Kong, which estimating instantaneous travel times using automatic vehicle identification (AVI) data. The system is a robust on-line updating platform for advanced traveler information, from which the real-time travel time estimates for Hong Kong road networks can be easily extracted. In the RTIS, the travel times are estimated by the real-time AV I data, the off-line travel time estimates and their variance-covariance relationships between road links. The real-time AVI data adopted for RTIS are Autotoll tag data in Hong Kong; whereas the off-line link travel time estimates and their variance-covariance matrices are obtained from a traffic flow simulator. On the basis of integration of these real-time and off-line traffic data, the current traffic conditions on Hong Kong major roads can be estimated at five-minute intervals. A case study is carried out in Kowloon Central urban area to collect observed data for validation of the results of the proposed RTIS.
Original language | English |
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Title of host publication | Proceedings of the 11th International Conference of Hong Kong Society for Transportation Studies |
Subtitle of host publication | Sustainable Transportation |
Pages | 563-572 |
Number of pages | 10 |
Publication status | Published - 1 Dec 2006 |
Event | 11th International Conference of Hong Kong Society for Transportation Studies: Sustainable Transportation - Kowloon, Hong Kong Duration: 9 Dec 2006 → 11 Dec 2006 |
Conference
Conference | 11th International Conference of Hong Kong Society for Transportation Studies: Sustainable Transportation |
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Country/Territory | Hong Kong |
City | Kowloon |
Period | 9/12/06 → 11/12/06 |
ASJC Scopus subject areas
- Automotive Engineering
- Civil and Structural Engineering
- Mechanical Engineering
- Safety, Risk, Reliability and Quality
- Transportation