Surveillance and Control Systems for Highway Tunnels
Unlike open highways, tunnels require special attention to maintain safety under normal and abnormal traffic conditions. Most modern tunnels, including their approach roads, require a centralized control system to meet these goals. Although not all tunnels require the same attention or installed features, they all have the following general features. [Note: The dimensions shown in this chapter are indicative guidelines. All English unit equivalents are soft (rounded) conversions of metric.]
KeywordsFoam Transportation Hydrocarbon Diesel Explosive
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