%A LU Huapu %T Progress of intelligent transportation system key technologies %0 Journal Article %D 2019 %J Science & Technology Review %R 10.3981/j.issn.1000-7857.2019.06.004 %P 27-35 %V 37 %N 6 %U {http://www.kjdb.org/CN/abstract/article_15283.shtml} %8 2019-03-28 %X Firstly, this paper summaries and analyzes the present development of intelligent transportation systems from two aspects:urban ITS and new technologies. Then, the prospective discussions are given for the traffic big data platform, the video technology, the AI technology, the traffic control technology, the vehicle-road coordination, the urban traffic brain and the non-contact technology. Finally, the key directions and some suggestions for the development of the intelligent transportation in the future are put forward.