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A safety kernel for traffic light control

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1 Author(s)
P. Ammann ; Mason Univ., Fairfax, VA, USA

The success of kernels for enforcing security in software systems has led to proposals to use kernels for enforcing safety. This paper presents a feasibility demonstration of one particular proposal for a safety kernel via the application of traffic light control. The paper begins with the safety properties for traffic light control and specifies a kernel that maintains the safety properties. An implementation sketch of the kernel in Ada is given and use of the kernel is discussed. The contribution of the paper is a demonstration that a kernel is a feasible and desirable technique for software in a realistic, safety-critical application. The paper also illustrates how formal methods aid the software engineer in constructing and reasoning about such software

Published in:

IEEE Aerospace and Electronic Systems Magazine  (Volume:11 ,  Issue: 2 )