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Developing and Field Testing a Green Light Optimal Speed Advisory System for Buses
| Content Provider | MDPI |
|---|---|
| Author | Chen, Hao Rakha, Hesham A. |
| Copyright Year | 2022 |
| Description | In this study, a Green Light Optimal Speed Advisory (GLOSA) system for buses (B-GLOSA) was developed. The proposed B-GLOSA system was implemented on diesel buses, and field tested to validate and quantify the potential real-world benefits. The developed system includes a simple and easy-to-calibrate fuel consumption model that computes instantaneous diesel bus fuel consumption rates. The bus fuel consumption model, a vehicle dynamics model, the traffic signal timings, and the relationship between vehicle speed and distance to the intersection are used to construct an optimization problem. A moving-horizon dynamic programming problem solved using the A-star algorithm is used to compute the energy-optimized vehicle trajectory through signalized intersections. The Virginia Smart Road test facility was used to conduct the field test on 30 participants. Each participant drove three scenarios, including a base case uninformed drive, an informed drive with signal timing information communicated to the driver, and an informed drive with the recommended speed computed by the B-GLOSA system. The field test investigated the performance of using the developed B-GLOSA system considering different impact factors, including road grades and red indication offsets, using a split-split-plot experimental design. The test results demonstrated that the proposed B-GLOSA system can produce smoother bus trajectories through signalized intersections, thus producing fuel consumption and travel time savings. Specifically, compared to the uninformed drive, the B-GLOSA system produces fuel and travel time savings of 22.1% and 6.1%, on average, respectively. |
| Starting Page | 1491 |
| e-ISSN | 19961073 |
| DOI | 10.3390/en15041491 |
| Journal | Energies |
| Issue Number | 4 |
| Volume Number | 15 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2022-02-17 |
| Access Restriction | Open |
| Subject Keyword | Energies Transportation Science and Technology Eco-driving Glosa Signalized Intersection Diesel Bus Eco-cooperative Adaptive Cruise Control Fuel Consumption Model Field Test |
| Content Type | Text |
| Resource Type | Article |
