摘要: |
Each winter, state and local governmental transportation agencies across the United States are commonly faced with the need to control snow and ice on their highways and roads. Severe winter conditions raise safety hazards for those who are traveling and have a major negative economic impact. Even though public transportation agencies have developed and applied an array of practices and techniques for snow and ice control to minimize winter hazards and make highways, roads, and streets safer for travel, their customers--the traveling public--desire more. Therefore, these agencies are continually looking for better ways to address snow and ice problems. One such effort to seek better ways of snow and ice control was a 1994 International Winter Maintenance Technology Scanning Tour sponsored by the American Association of State Highway and Transportation Officials (AASHTO), through the National Cooperative Highway Research Program (NCHRP) and the Federal Highway Administration's (FHWA's) International Outreach Program. A group of state and local government winter maintenance experts, together with a representative from the FHWA, was constituted as a Scanning Team and visited winter maintenance road officials in Japan and Europe. The Scanning Team found many equipment technologies and winter maintenance systems improvements during the tour that were not used in the United States, but were believed to be of potential benefit to Americans. The Scanning Team developed a proposal for a Winter Maintenance Program and presented those findings to the AASHTO Subcommittee on Maintenance and the Standing Committee on Highways. The Winter Maintenance Program was subsequently presented to the AASHTO Board of Directors and adopted at its November 1994 annual meeting. The Program is designed to have a collaborative relationship with AASHTO and Transportation Research Board Committees, such as the Committee on Maintenance Equipment. This paper describes details of that program and the progress that has been made toward implementation. |