Institute of Transportation, MOTC

　　To respond to the major issue of global warming, this study investigates the inclination to idling stops during red time at signalized intersection, focusing on the domestic most popular traffic mode-motorcycle. The main purpose is to evaluate the effect on energy saving and carbon reduction by changing the influence factors of willingness for idling stops. After calibrating the Cox proportional hazard model originated from the survival analysis, we found that a total of five factors: i.e. willingness to save energy and reduce carbon, oil price rise, willingness to stop idling, following other motorcyclists, an inclination to rule stop idling by legislation, and education, may significantly influence the motorcyclists’ willingness for idling stops. By evaluating a real signalized intersection, we further found that the oil price rise is the most effective factor on energy saving and carbon reduction, which may result in a CO2 reduction of as high as 90 tons a year. On the contrary, education plays the least effective role, it can also reduce 1.6 tons CO2 emission in a year.