Surveys of highway connected agencies and an extensive literature search of maintenance research in the U.S., Great Britain, and Europe were conducted to compile a review of existing nonchemical methods of snow removal and ice control of concrete surfaces. Details of permanent installations, the water pipe and electrical heating element customarily installed in concrete slabs, are given. Potential applications of electrical and gas-fired infrared heaters are discussed. other methods investigated included covered bridges, electrically conductive road surfaces, snow melting pits, and bridge deck insulation.

Issues for 1963- include section: Urban transportation research digest.

This report contains 56 conference papers pertaining to snow removal and ice control research including Canadian research and equipment. Several of the papers are concerned with deicing salts--their effectiveness, their impact on the environment, and possible alternatives to them. Alternative methods of deicing discussed herein include: heating of bridge decks, increasing coefficient of friction between tires and pavement surfaces, use of high intensity lights, and advent of less corrosive chemicals. There are also several papers that address the problem of snow and ice accretion on power wires, guideway systems, sign boards, and etc. There is considerable attention given to development of computer programs and models for predicting scope of snow and ice control operations and for evaluating their effectiveness. Also, several papers discuss new developments in snow removal equipment and the cost of operation and maintenance.