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Investigation of the Effects of Limited Ramp Closures along the H-1 Freeway. Volume 3. West Bound Lunalilo Street On-Ramp Closure: Justification, Design and Analysis of Research Experiment; Final rept. Feb 97-Nov 99
| 题名： | Investigation of the Effects of Limited Ramp Closures along the H-1 Freeway. Volume 3. West Bound Lunalilo Street On-Ramp Closure: Justification, Design and Analysis of Research Experiment; Final rept. Feb 97-Nov 99 |
| 作者： | Prevedouros, P. D. |
| 关键词： | Freeways; Ramp control; Vehicular traffic control; Traffic safety; Highway design; Traffic flow; Highway transportation; Computer simulation; Research projects; Hawaii; Travel time; Surveys; Traffic congestion; Traffic engineering; Traffic management |
| 摘要： | The focus of the research project is the central section of the H-1 Fwy. between Koko Head Ave. and Middle St., in Honolulu, Hawaii. The objective of the project is the investigation of short-term actions to improve the flow of traffic. The project utilized FRESIM. INTEGRATION, KRONOS and TRANSYT-7F to identify ramps that impede the mainline flow and assess to the impact on both freeway and streets should the ramps be modified. AUTOSCOPE speeds were used to calibrate the base-case models. This volume summarizes the 2-week experimental closure of the Lunalilo St. on-ramp in fall 1997. Simulation revealed that this on-ramp is the most significant bottleneck on the west bound freeway and that its morning closure would result in substantial travel time savings to freeway users. The local geometry permits traffic from the on-ramp to continue onto the Vineyard Blvd. off-ramp without entering the freeway. Overall, results showed strong promise for long-term benefit. Although speeds initially dropped, by the last (10th) day of the experiment, peak morning travel time on the freeway was 15% faster than normal. Surveys were distributed to motorists at upstream on-ramps. The majority of the 1,120 respondents wanted the morning coning to continue and relatively few disliked the experiment. About 1/4 of Lunalilo St. motorists liked the morning coning and 1/4 were neutral. Long-term experimental closure of this ramp with automated enforcement is recommended for week days and between 6:00 and 9:30 A.M. |
| 总页数： | 188p |
| 报告类型： | 科技报告 |
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