The Japan Highway Public Corporation (JH) has been carrying out its operation of intercity expressways and the total length is about 6,900 kilometres now. The winter climate of Japan is characterized by much snowfall, owing to the complexity of its geographical features and the seasonal wind. Therefore, JH is now trying to expand the functions of snow and ice control machinery to accomplish more efficient, speedier and safer expressway operation. Presently, one of the most crucial issues is the development of various efficient machines and equipments. In this paper, some representative trial examples of the development are introduced. Firstly, an automatic information collection system on road surface conditions is introduced. Such information is fundamental for snow and ice control operation and this task can be carried out only by little number of experts who enable to judge surface conditions correctly. Therefore, the developed automatic system has been tested and reasonable results have been obtained so far. The rest of the examples are a one-operator snow removal truck, a slush removal truck and a snow removal machine around emergency telephones. These could contribute to reduction of the required time of snow and ice control operation, and would lead to providing safe and comfortable conditions on expressways.