This chapter is a basic intro to surveys. Much of it is useful for general survey research. Many issues are discussed, such as design, sampling, following households. Not just for transportation studies. This page describes general issues of sampling, which should be of use to everyone.
Main topics are sample size and use of cluster sampling.
Also see the research page for some sites on sampling issues. THE NET Also see the research page on this site, which has links about research of using the web. The Web Questionnaire Challenge to Survey Methodologists. Book Chapter Forthcoming. Dillman, Don A., Robert D. Tortora, and Dennis Bowker.