ABSTRACT
American Society for Testing and Materials (ASTM) International is an organization that relies on volunteers working in industry, as consultants, and in the teaching profession to develop specifications and standards that specify the performance and compliance testing procedures for a wide range of products and materials. The ASTM specifications and standards are a worthwhile tool for ensuring that a traffic management agency obtains sensors that will meet its needs. This chapter discusses testing and evaluating sensor performance. It reviews the information available in testing standards such as those developed through ASTM International. The chapter examines the concepts of confidence intervals and confidence levels that should be included in any standard or specification that is prepared for sensor accuracy measurement and purchase. It is concerned with interoperability as it relates to institutions, policies and procedures, and technical concerns such as interfacing with other components and data transfer among devices.
