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1972-08
1972-06
ENVIRONMENTAL LEGISLATION MEMORANDUM

Highway Research Circular, Issue 136, 32 p

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1972-05
ENVIRONMENTAL LITIGATION IN 1971

Highway Research Circular, Issue 135, 16 p

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1972-04
RESEARCH PROBLEM STATEMENTS

Highway Research Circular, Issue 132, 31 p

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1972
Lighting

Highway Research Record, Issue 416, 31p

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1972
1972
Traffic flow characteristics and models

Highway Research Record, Issue 409, 81p

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1972
Emergency communications

Highway Research Record, Issue 402, 45p

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1972
1972
Transportation systems planning process

Highway Research Record, Issue 394, 40p

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1972
Freeway operations and control

Highway Research Record, Issue 388, 94p

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1972
Citizen participation and community values

Highway Research Record, Issue 380, 48p

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1972
THE CHANGEABLE-MESSAGE CONCEPT OF TRAFFIC CONTROL

Highway Research Board Special Report, Issue 129, 54 p.

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1972
AUTOMOTIVE NOISE: ENVIRONMENTAL IMPACT AND CONTROL

Highway Research Record, p. 45-55

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1972
RADIO SPECTRUM FREQUENCY MANAGEMENT

NCHRP Synthesis of Highway Practice, Issue 13, 29 p.

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1972
1972
1972
1972
ROADWAY DELINEATION SYSTEMS

NCHRP Report, Issue 130, 349 p.

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