NDLI: A Resilient Real-Time Traffic Control System

Content Provider	IEEE Xplore Digital Library
Author	Serageldin, A. Krings, A.
Copyright Year	2015
Abstract	This paper describes a resilient control system operating in a critical infrastructure. The system is a real-time weather responsive system that accesses weather information that provides near-real-time atmospheric and pavement observation data that is used to adapt traffic signal timing to increase safety. Since the system controls part of a safety critical application survivability and resilience considerations must be an integral part of the system architecture. In order to provide adaptation to system behavior as the result of faults or malicious acts an architecture is presented that monitors itself and adapts its behavior in real-time. The main theoretical contributions are the combination and extension of approaches introduced in previous work. The theory of certifying executions is extended by three concepts: the detection of dependency violations, exceptions triggers, and sensor analysis are considered, a dual-bound threshold approach for detecting off-nominal executions is introduced, profiling is augmented with the concept of behavior sets. Extensive evidence of the effectiveness of the solutions based on a one-year observation of the system in action is presented.
Starting Page	2869
Ending Page	2876
File Size	939399
Page Count	8
File Format	PDF
ISSN	21530017
e-ISBN	9781467365963
DOI	10.1109/ITSC.2015.461
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-09-15
Publisher Place	Spain
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Monitoring Real-time systems Meteorology Control systems Software Rabbits Timing
Content Type	Text
Resource Type	Article

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