An integrated variable speed limit and ALINEA ramp metering model in the presence of high bus volume
| Autor: | Murat Ergun, Nima Dadashzadeh |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
VISSIM
Computer science variable speed limit bus lane lcsh:TJ807-830 Geography Planning and Development udc:004:656.1 lcsh:Renewable energy sources trajnostni transport 010501 environmental sciences Management Monitoring Policy and Law 01 natural sciences Automotive engineering transit signal priority ramp metering hitrostne spremenljivke 0502 economics and business Metering mode Bus priority VisVAP gradbeništvo lcsh:Environmental sciences 0105 earth and related environmental sciences computer.programming_language lcsh:GE1-350 bus priority 050210 logistics & transportation sustainable transport Renewable Energy Sustainability and the Environment lcsh:Environmental effects of industries and plants Speed limit 05 social sciences ALINEA transit signal priority programi Traffic flow cestni promet VisSim lcsh:TD194-195 Sustainable transport Fuel efficiency Bus lane ramp metering computer avtobusi |
| Zdroj: | Sustainability, vol. 11, no. 22, 6326, 2019. Dadashzadeh, N & Ergun, M 2019, ' An integrated variable speed limit and ALINEA ramp metering model in the presence of High Bus Volume ', Sustainability (Switzerland), vol. 11, no. 22, 6326 . https://doi.org/10.3390/su11226326 Sustainability Volume 11 Issue 22 Sustainability, Vol 11, Iss 22, p 6326 (2019) |
| ISSN: | 2071-1050 |
| Popis: | Under many circumstances, when providing full bus priority methods, urban transport officials have to operate buses in mixed traffic based on their road network limitations. In the case of Istanbul's Metrobus lane, for instance, when the route comes to the pre-designed Bosphorus Bridge, it has no choice but to merge with highway mixed traffic until it gets to the other side. Much has been written on the relative success of implementing Ramp Metering (RM), for example ALINEA (&lsquo Asservissement line´ aire d&rsquo entre´ e autoroutie&rsquo ) and Variable Speed Limits (VSL), two of the most widely-used &ldquo merging congestion&rdquo management strategies, in both a separate and combined manner. However, there has been no detailed study regarding the combination of these systems in the face of high bus volume. This being the case, the ultimate goal of this study is to bridge this gap by developing and proposing a combination of VSL and RM strategies in the presence of high bus volume (VSL+ALINEA/B). The proposed model has been coded using microscopic simulation software&mdash VISSIM&mdash and its vehicle actuated programming (VAP) feature referred to as VisVAP. For current traffic conditions, the proposed model is able to improve total travel time by 9.0%, lower the number of average delays of mixed traffic and buses by 29.1% and 81.5% respectively, increase average speed by 12.7%, boost bottleneck throughout by 2.8%, and lower fuel consumption, Carbon Monoxide (CO), Nitrogen Oxides (NOx), and Volatile Organic Compounds (VOC) emissions by 17.3% compared to the existing &ldquo VSL+ALINEA&rdquo model. The results of the scenario analysis confirmed that the proposed model is not only able to decrease delay times on the Metrobus system but is also able to improve the adverse effects of high bus volume when subject to adjacent mixed traffic flow along highway sections. |
| Databáze: | OpenAIRE |
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