Study of Vehicle Driving Cycle Modes on Road in Beijing

Measurement of driving cycle and data collection were performed using a GPS system for light-duty vehicles, buses and heavy-duty trucks separately. Based on the driving data collected, the cycle analysis was conducted and typical cycles in Beijing were developed. The results showed that light duty vehicles and buses ran mostly in urban areas at low speed mode, and the proportions of idle, acceleration and deceleration were very high. Heavy duty trucks could run only outside the Fifth Ring Road in the daytime at higher speed mode and there was a higher proportion of uniform speed mode. Compared with driving modes in foreign countries, there was large disparity in average vehicle speed, acceleration, deceleration and ratio of different modes for the heavy-duty trucks in Beijing.