Impact Reactions Developed by a Modern Motor Bus; The Effect of the Dimensions of Test Specimens on the Flexural Strength of Concrete; Meeting of the Joint committee on concrete and Reinforced Concrete; Analysis of Motor Vehicle Accidents in California
Toll Roads; The Effect of Vibration on the Pressure of Concrete Against Formwork; Motion Pictures on Road Construction Available; 1930 Motor Vehicle Registrations and Receipts
North Carolina Country Road and Finance Survey; Truck Operation and Production in Concrete Paving Work; High-Speed Production on Asphalt Concrete Paving Work
Bituminous Treatments Used on Roads of Intermediate Type in the Western States; The Most Recent Methods Adopted for the Use of Tar. Bitumen, and Asphalt in Road Construction. Report of American Engineers to the Sixth International Road Congress
Cooperative Survey of Corrugated Metal Culverts on the Austin-San Antonio Post Road; Methods for the Measurement of Water for Cement Briquet Tests; Results Obtained by the Use of Cement. Report of American Engineers to the Sixth International Road Congress
General Reports Submitted to International Road Congress; International Road Congress Adopts General Conclusions; Bureau of Public Roads Enters Upon New Research Program
Motor Truck Impact as Affected by Rubber Tread Thickness of Tires; The Interrelated Effects of Load, Speed, Tires, and Road Roughness on Motor Truck Impact
Illustrations of Frost and Ice Phenomena; Progress Report on the Connecticut Avenue Experimental Road; Some Points of Contact Between Soil Science and Highway Engineering
Drinking Fountains Along Oregon Highway; Flow of Flood Water Over Railway and Highway Embankments; Plans for International Road Congress Announced; Motor Vehicle Registrations and Revenue and Gasoline Taxes in 1929; Soil Sampling With a Compressed Air Unit
Earth Pressure Experiments on Culvert Pipe; Appendix I.—Notes Relative to Vertical Pressures on Pipe Culverts; Appendix II.—Stresses and Deflections of Pipe Culverts
Bituminous Surface Treatment Experiments in Department of Agriculture Grounds; Traffic Survey Now Under Way in Western States; The Freyssinet Method of Concrete Arch Construction; Accuracy of Specific Gravity and Absorption Tests of coarse Aggregate Investigated
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