Advanced traffic management information systems (ATMIS) must rely on computers to process information. The security of any intelligent vehicle highway system depends on protecting computing system assets - data, computing resources, and users - from external threats and internal vulnerabilities. This paper presents a case study of an IVHS security policy designed and maintained in the context of an automated toll collection and accounting system, an exemplary ATMIS technology. A prototype policy workbench is introduced as a means for assisting tool users in working with security policy for large, complex systems. (A)
Abstract