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1972
1972
THE CHANGEABLE MESSAGE CONCEPT OF TRAFFIC CONTROL - INTRODUCTION

Highway Research Board Special Report, Issue 129, 1 p.

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1972
VARICOM TRAFFIC CONTROL AND COMMUNICATION SYSTEM

Highway Research Board Special Report, Issue 129, p. 29-32

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1971-09
HIGHWAY COMMUNICATIONS TRUNK REQUIREMENTS

Highway Research Circular, Issue 128, 19p

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1971
Operational improvements for freeways

Highway Research Record, Issue 363, 59p

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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
PLANNING CONSIDERATIONS FOR TRAFFIC SIGNAL SYSTEMS

Highway Research Record, Issue 366, pp 29-36

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1971
1971
MOTORIST AID SYSTEMS

NCHRP Synthesis of Highway Practice, Issue 7, 28p

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1971
AN ANALYSIS OF DIAMOND INTERCHANGE SIGNALIZATION

Highway Research Record, Issue 349, pp 47-64

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1971
DATA REQUIREMENTS FOR CONTINUING TRANSPORTATION PLANNING

Highway Research Board Special Report, Issue 121, pp 5-8

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1971
NETWORK DATA, GEOGRAPHIC CODING CAPABILITIES, AND AREA SYSTEMS

Highway Research Board Special Report, Issue 121, pp 34-38

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1971
LIMITATIONS OF CENSUS DATA FOR TRANSPORTATION PLANNING AND NEEDED PROGRAMS

Highway Research Board Special Report, Issue 121, pp 82-85

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1970
1970
1970
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