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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
Maintenance practices 1967

Highway Research Record, Issue 254, 74p

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1968
Freeway operations

Highway Research Record, Issue 244, 91p

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1968
Paints, metals, joints and polyester overlays

Highway Research Record, Issue 242, 83p

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1968
Highway communications

Highway Research Record, Issue 219, 51p

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1968
Lighting, visibility and driving

Highway Research Record, Issue 216, 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
SENSING AND COMMUNICATION BETWEEN VEHICLES

NCHRP Report, Issue 51, 105 p.

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1968
PHOTOMETER FOR MEASUREMENT OF REFLEX-REFLECTIVE SIGN MATERIALS

Highway Research Record, Issue 242, pp 15-21

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1968
VISCOELASTIC RESPONSE OF AGED ASPHALT CEMENTS

Highway Research Record, Issue 231, pp 50-61

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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
SWEDEN CHANGES TO RIGHT-HAND DRIVING

Highway Research Record, Issue 234, pp 29-36

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1968
LOCATION, SELECTION, AND MAINTENANCE OF HIGHWAY GUARDRAILS AND MEDIAN BARRIERS

NCHRP Report, Issue 54

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1968
AN ANALYSIS OF FLASHING SYSTEMS

Highway Research Record, Issue 221, pp 72 - 84

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1968
CLEARANCE INTERVAL AT TRAFFIC SIGNALS

Highway Research Record, Issue 221, pp 41 - 71

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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
AN INVESTIGATION OF WIND LOADS ON ROADSIDE SIGNS

Highway Research Record, Issue 222, pp 1-11

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1968
LETTER AND SIGN CONTRAST, BRIGHTNESS, AND SIZE EFFECTS ON VISIBILITY

Highway Research Record, Issue 216, pp 48-54

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1968
COLOR AND BRIGHTNESS FACTORS IN SIMULATED AND FULL-SCALE TRAFFIC SIGN VISIBILITY

Highway Research Record, Issue 216, pp 55-65

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1968
ECONOMIC MODEL FOR THE MAINTENANCE OF TRAFFIC SIGNALS

Highway Research Record, Issue 254, pp 38-58

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1968
CRITERIA TO BE USED IN DEVELOPING WARRANTS FOR INTERCHANGES ON RURAL EXPRESSWAYS

Highway Research Record, Issue 244, pp 69-89

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1968
ORIENTATION AND TRANSIT SYSTEMS

Highway Research Record, Issue 251, pp 69-77

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1967-06
BENEFIT OFFSET IN FEDERAL CONDEMNATION

Highway Research Circular, Issue 68, 4p

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1967
A Study of the Feasibility of Using Roadside Communications for Traffic Control and Driver Information. Report no. 2

Highway Research Record, Issue 202, pp 32-66

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1967
Nighttime Use of Pavement Delineation Materials

Highway Research Record, Issue 179, p 74

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of 268 pages    

Showing 6376 - 6400 of 6690 records