| Autor: |
Sophie Midenet, Florence Boillot, Jean-Claude Pierrelée |
| Rok vydání: |
2004 |
| Předmět: |
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| Zdroj: |
Transportation Research Part D: Transport and Environment. 9:29-47 |
| ISSN: |
1361-9209 |
| DOI: |
10.1016/s1361-9209(03)00044-0 |
| Popis: |
This study seeks to quantify the environmental costs linked to an isolated signalized intersection in terms of carbon dioxide (CO2) emission, fuel consumption and standard pollutant emission, and discusses the potential of advanced control strategy for reducing these costs. A multi-camera system automatically estimates vehicle idle time and stop rates per itinerary; each vehicle is affected a cost that depends on whether it stops at least once and on its idle time on red. Elementary costs are calibrated using real urban driving cycles and their corresponding emission profiles measured on test benches. These experimental data are used to calibrate average coefficients for catalyst converter gasoline vehicles, non-catalyst ones and diesel vehicles (passenger cars). An on-field experiment was performed during 8 months to evaluate the benefits of the CRONOS control system, which uses video traffic sensors, compared to a time plan strategy with vehicle actuated ranges. The benefits observed have shown the potential of the CRONOS strategy. Large benefits on stops and delay induce significant reduction in environmental damage: 4% reduction for CO2 emission in peak traffic whatever the engine type, which corresponds to a 14% reduction in costs due to stops and delay. These results suggest that environmental costs can be reduced without affecting traffic flow by using the adaptive real-time control strategy. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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Full Text from ScienceDirect