原文传递
NEW METHOD FOR ESTIMATING FREEWAY INCIDENT CONGESTION.
| 题名： | NEW METHOD FOR ESTIMATING FREEWAY INCIDENT CONGESTION. |
| 作者： | Al-Deek-H; Garib-A; Radwan-AE |
| 关键词： | URBAN-FREEWAYS; INCIDENTS-; ESTIMATING-; TRAFFIC-CONGESTION; SHOCK-WAVE-ANALYSIS; TRAFFIC-SPEED; TRAFFIC-COUNTS; TRAFFIC-DELAY; CALCULATION-; CASE-STUDIES; ALAMEDA-COUNTY-CALIFORNIA |
| 摘要： | Incidents are a major cause of travel delays on urban freeways. This paper describes development and application of a new method for estimating freeway incident congestion where extensive loop and incident data are available. Using shock wave analysis, a time-space domain is determined for each incident. This is used to define the congestion boundaries of an incident and to decide whether the incident should be analyzed as isolated or as a multiple-incident case. The freeway section is divided into smaller segments, each segment containing only one mainline loop station. Traffic speed and counts at freeway mainline stations and traffic counts at on/off ramp stations upstream and downstream of the incident location are used to calculate incident delay on each segment during small time slices, then cumulative incident delay is calculated. Satisfactory results were achieved when the new method was applied to a sample of isolated and multiple-incident cases collected recently as part of the Freeway Service Patrol Evaluation Project on I-880 in Alameda County, California. |
| 总页数： | Transportation Research Record. 1995. (1494) pp30-39 (4 Fig., 3 Tab., 11 Ref.) |
| 报告类型： | 科技报告 |
相关文献
- ESTIMATING EMISSIONS AND FUEL CONSUMPTION FOR DIFFERENT LEVELS OF FREEWAY CONGESTION.
- Decision-Making System for Freeway Incident Response Using Sequential Hypothesis Testing Methods
- Modeling Incident-Related Routing Decisions by Using a Nested Logit Structure
- GUIDELINES FOR A UNIFIED MANAGEMENT PLAN FOR MAJOR INCIDENTS. IN: COMPENDIUM: PAPERS ON ADVANCED SURFACE TRANSPORTATION SYSTEMS, 2001.
- AN APPLICATION OF ITS FOR INCIDENT MANAGEMENT IN SECOND-TIER CITIES: A FARGO, ND CASE STUDY.
- COMMUTER RESPONSE TO TRAFFIC INFORMATION ON AN INCIDENT.
检索历史
应用推荐
