The respondents' commuter trips are twice everyday,and about 5 and a half days every week.The average distances of commuter trips between the respondents who have private cars and the respondents who have no private cars are significantly different.The respondents without private cars daily traveled 24.24 kilometers,the respondents with private cars daily traveled 35.64 km.The order of cities' commuter trips from long to short are Guangzhou,Beijing,Wuhan,Chengdu,Shanghai,Shenyang and Xi'an.The order of car trip distances from far to near are Chengdu,Shenyang,Guangzhou,Xi'an,Beijing,Wuhan and Shanghai.The average time for waiting for a bus for one-way was of 27.08 minutes,average transfer time was 16.14 minutes,the average traffic jam time was 25.51 minutes.The average time to find parking is 11.86 minutes,the average time of car congestion is 30.35 minutes. <<