| Title | Traffic Flow Characteristics of Toll Plazas, Tunnels, and Upgrade Segments on Freeways and other Roadways (1/3) |
| Dept | Transportation Planning and Land Transport Division |
| Year | 2011 |
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| Summary | In 2010 the Institute of Transportation (IOT), Ministry of Transportation and Communications, initiated a three-year research project to develop methodologies for capacity analysis of toll plazas, highway tunnels, and highway grade segments. The objectives of the first phase of this research project are: (1) to develop an improved tool for capacity analysis of freeway toll plazas and use the results to revise Chapter 8 of the Year 2001 Taiwan Area Highway Capacity Manual, and (2) to explore the characteristics of traffic flows on San-Yi grade segment located on National Highway 1 for the purpose of setting a direction for future research. To achieve these objectives, the research team carries out the following tasks: (1) collect data from several large and small toll plazas on National Highway 1, 3, and 5 to reveal traffic patterns, capacities of toll lanes, and characteristics of toll-lane utilization (2) use field data to calibrate and revise the Toll Plaza Simulation (TPS) model (3) use data provided by IOT to develop a model for estimating fuel consumption and carbon dioxide emission (4)develop an improved methodology for capacity analysis of toll plazas (5) revise Chapter 8 of the Year 2001 manual (6) revise the TPS User Manual (7) collect free-flow speed data on San-Yi grade segment and use the data to calibrate and validate the Truck Speed Simulation (TSS) Model and (8) Use data provided by the Bureau of Freeways to examine the speed-flow relationships on San-Yi grade segment and recommend a direction for future research. Simulation software (Tps-v2.exe and TSS-V1.exe) developed in this phase of research will be posted at IOT’s Website for free download. This report documents the findings of phase 1 research. |
| Post date | 2011/07/11 |
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