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Relating the 2010 Signalized Intersection Methodology to Alternate Approaches in the Context of NYC Conditions. Final Report.
| 题名： | Relating the 2010 Signalized Intersection Methodology to Alternate Approaches in the Context of NYC Conditions. Final Report. |
| 作者： | Prassas, E.; Vin, A. |
| 关键词： | Computerized Simulation; Environmental Impact; Highway Capacity; Manual; Meetings; Methodology; New York City(nyc); Regulations; Saturation; Signalized Intersections; Traffic Control; Traffic Delay; U |
| 摘要： | The Highway Capacity Manual (HCM) has had a delay-based level of service methodology for signalized intersections since 1985. The 2010 HCM has revised the method for calculating delay. This happened concurrent with such jurisdictions as NYC reviewing the use of the HCM method in their environmental impact regulations (e.g. CEQR process), and concurrent with a dialog in the profession on when it is appropriate to use simulation models in lieu of HCM methods. This effort focused on providing guidance on how to use the 2010 HCM signalized intersection method in the context of the NYC urban environment. It was deemed important by NYCDOT to verify whether the delay and saturation flow estimates were consistent with what is found in the field in New York City, and specifically Manhattan. It was decided to measure and do analyses of the following measures of effectiveness: a) Saturation flow rate, b) Delay, and c) Start-up lost time. We began the process with meetings with NYCDOT staff to determine what data was available and what level of analysis they thought was needed. The HCM signalized intersection methodology is known to not work well in oversaturated conditions unless a multi-period analysis is done. |
| 报告类型： | 科技报告 |
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