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1969
REDUCTION OF ACCIDENTS BY PAVEMENT GROOVING

Highway Research Board Special Report, Issue 101, pp 110-125

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1969
DEVELOPMENT OF IMPROVED METHODS FOR REDUCTION OF TRAFFIC ACCIDENTS

NCHRP Report, Issue 79, 161 p.

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1969
TRAFFIC-SAFE AND HYDRAULICALLY EFFICIENT DRAINAGE PRACTICE

NCHRP Synthesis of Highway Practice, Issue 3, 38p

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1969
REHABILITATION OF SLIPPERY ROADS

Highway Research Record, Issue 300, pp 27-32

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1968-06
SUMMARY OF PROGRESS THROUGH JUNE 30, 1968

NCHRP Report

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1968
Evaluation of pavement marking to designate direction of travel and degree of safety

Highway Research Record, Issue 221, pp 23-40

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1968
Traffic conflict characteristics-accident potential at intersections

Highway Research Record, Issue 225, pp 35-43

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1968
Red colored pavement

Highway Research Record, Issue 221, pp 15-22

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1968
Colored pavements for traffic guidance

Highway Research Record, Issue 221, pp 1-14

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1968
Guidance aspects of colored pavements and pavement markings - 5 reports

Highway Research Record, Issue 221, 84p

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1968
Traffic safety and accident research

Highway Research Record, Issue 225, 65p

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1968
Guardrails, median barriers and sign and light supports

Highway Research Record, Issue 222, 98p

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1968
THE PENALTIES OF NON-STANDARDIZATION

Highway Research News, Issue 32, Pp34-37

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1968
A REPORT ON THE NATIONAL CONFERENCE ON HIGHWAY COMMUNICATION FOR SERVICE AND SAFETY

Highway Research Record, Issue 219, pp 17-19

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1968
JUMBO JET AIRCRAFT AND THE IMPACT THEY WILL HAVE ON TRANSPORTATION

Highway Research Record, Issue 234, pp 1-17

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1968
CLEARANCE INTERVAL AT TRAFFIC SIGNALS

Highway Research Record, Issue 221, pp 41 - 71

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1968
AN ANALYSIS OF FLASHING SYSTEMS

Highway Research Record, Issue 221, pp 72 - 84

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1968
DESIGN CRITERIA FOR BREAK-AWAY SIGN SUPPORTS

Highway Research Record, Issue 222, pp 12-19

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1968
GETTING THE MOST FROM CITY STREETS

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1968
COMMUNICATION REQUIREMENTS IN THE METHODOLOGY OF AUTOMATIC CONTROL OF HIGHWAY TRAFFIC

Highway Research Record, Issue 219, pp 30-37

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1968
REMARKS BEFORE PENNSYLVANIA DEPARTMENT OF HIGHWAYS SEMINAR, FEBRUARY 28, 1968 HARRISBURG

Highway Research Record, Issue 220, pp 1-4

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1968
OPTIMIZATION OF ROADWAY LIGHTING SYSTEMS

Highway Research Record, Issue 216, pp 34-47

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1968
ACCIDENT RATES AS RELATED TO DESIGN ELEMENTS OF RURAL HIGHWAYS

NCHRP Report, Issue 47

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1968
MYTHS AND MISCONCEPTIONS IN TRAFFIC SAFETY

Highway Research News, Issue 31, p. 52-63

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1968
NATIONAL SURVEY OF TRANSPORTATION ATTITUDES AND BEHAVIOR- PHASE 1 SUMMARY REPORT

NCHRP Report, Issue 49

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Showing 8951 - 8975 of 9207 records