A database of 40 vehicle driving cycles, for the purpose of measuring vehicle emissions in the laboratory, has been developed for a range of traffic management schemes and a range of vehicle types. The driving cycles were developed from real-world operational profiles which were measured for a car, a light goods vehicle, a bus and a heavy goods vehicle. At six locations the four vehicles were driven over set routes which featured a selection of the following traffic management schemes: bus lane, cycle lane, road humps, other traffic calming, one way system, mini roundabout and urban traffic control. Speed data were collected using both a PC-based data logger and a Global Positioning System (GPS). The GPS was used to record both vehicle speed and location. The driving cycles were developed by extracting sections from the raw speed profiles relevant to the traffic management schemes of interest. Ten driving cycles were developed for each vehicle type: seven traffic management cycles and three control cycles. Emission measurements relating to some of these driving cycles are being conducted in a separate TRL project. (Author/publisher)
Samenvatting