摘要
运用数理统计学原理分析了简单随机抽样的特点,及其在应用中的过于随机给居民出行带来的影响,提出分层抽样的调查方法,推导了基于按比例分配和最优分配的抽样率公式,讨论了居民出行调查中的分层方法。建议对于大型城市采用简单随机抽样方法;而对于中小城市,按年龄分类,采用分层抽样方法,以提高调查精度。
Applying mathematical statistics, this paper studied the characters of random sampling and its excessive random effect on other trip characters, put forward stratified sampling method, researched quota sampling and best distribution sampling. It is recommended that random sampling should be adopted in large cities, and stratified sampling should be adopted in small-medium cities to raise investigation precision. 1 tab, 10 refs.
出处
《交通运输工程学报》
EI
CSCD
2004年第4期72-75,共4页
Journal of Traffic and Transportation Engineering
基金
国家杰出青年科学基金项目(59925819)
关键词
交通规划
抽样方法
数理统计
居民出行调查
Motor transportation
Random processes
Sampling
Statistical methods
