TitleThe Generalized Railroad Crossing: A Case Study in Formal Verification of Real-Time Systems
Publication TypeReport
Year of Publication1994
AuthorsHeitmeyer, C. L., and N. Lynch
Series TitleNRL Memorandum Report
Document Number7619
InstitutionNaval Research Laboratory
CityWashington, D.C.

A new solution to the Generalized Railroad Crossing problem, based on timed automata, invariants and simulation mappings, is presented and evaluated. The solution shows formally the correspondence between four system descriptions: an axiomatic specification, an operational specification, a discrete system implementation, and a system implementation that works with a continuous gate model. The details of the proofs, omitted from the conference paper due to lack of space, are included.

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