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The relationship between road lighting quality and accident frequency
The strongest relationship found was that for average road surface luminance: in the range 0.5-2.0 candelas/m2, it is estimated that an increase of 1 cd/m2 is associated with a 35 percent lower accident ratio. Other measures of luminance and illuminance were also found to be related to accident ratio, but not as clearly as was average road luminance, which is therefore the preffered explanatory…
Impact of Digital Filtering on FWD Load Cell and Deflection Sensor Responses.
Trr No. 1260 Pavement Design, Management And Performance., pp. 147-165 The study presented herein was performed under the general terms of the SHRP Technical Assistance contract. The support of SHRP in performing this study is gratefully acknowledged
GIS Applications in Airfield Pavement Management
Trr No. 1311. Pavement Design, Management, And Performance, pp. 267-276 Access, management, and analysis of the voluminous data associated with pavement networks at large commercial airports are critical issues constraining the effectiveness of airfiels pavement management. In order to address these problems, concepts from the fields of geographic information systems (GISs) have been coupled t…
Compaction Control Criteria for Clay Hydraulic Barriers
Trr No. 1462 Soils, Geology, And Foundations, pp. 28-35 The data show that this approach provides good control over the quality of compacted clays in the field and is more accommodating to natural variations in soil compoaition and ccmpaction characteristics than are the other approaches. A case hiatorv ia presented that illustrates the degree-of-saturation compactiim criterion
What is the expected role of ADP in a DOT
Selected Papers from AASHTP Proceedings; 1974 Sixtieth Annual Meeting Proceedings, pp. 124-145
Objectives and Efforts of the American National Standards Institute D-20 Comm…
Selected papers from AASHTO Proceedings; 1975 sixty-first annual meeting proceedings
