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1971
Communications and emergency services

Highway Research Record, Issue 358, 49p

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1971
NORTHWAY EMERGENCY TELEPHONE SYSTEM

Highway Research Record, Issue 358, pp 48-49

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1971
1971
1971
1971
1971
1971
1971
COST-EFFECTIVENESS OF FREEWAY MERGING CONTROL

Highway Research Record, Issue 363, pp 43-59

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1971
1970
Traffic signals and signs

Highway Research Record, Issue 325, 61p

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1970
Highway Capacity and Quality of Service

Highway Research Record, Issue 321, 83p

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1970
1970
Traffic flow characteristics

Highway Research Record, Issue 308, 104p

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1970
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