Study on a Stratified Sampling Investigation Method for Resident Travel and the Sampling Rate

Table 1

Comparison of the sampling rates of urban resident travel surveys in China and abroad [4, 5].

Urban population (ten thousands)	Sampling rate used in some mainland cities of China		North America recommended; value (%)
	City	Sampling rate (%)
<5	—	—	20
5–15	Taicang	4.0	12.5
15–30	Changshu	3.0	10
30–50	Yantai	4.2	6
50–100	Shantou	3.4	5
	Bengbu	4.0
	Guiyang	4.0
100–300	Suzhou	4.3	4-5
	Guangzhou	3.0
	Nanjing	4.1
>300	Tianjin	1.4	2-3
	Shanghai	3.3