智能交通大数据来源与数据归属讨论解说.pptxVIP

智能交通大数据来自何方，归谁所有? Where Do Intelligent Traffic Data Come From? Whom Do They All Belong to? 2014年9月14日起，上海市开始 进行第5次交通调查。上一次交通调 查在2009年进行的，至今已过去5年。 From September 14, 2014, Shanghai city started the 5th traffic survey. Last traffic survey in Shanghai was conducted in 2009. So far, it has been past for 5 years. 5年来，上海的私人小汽车增加 了91%，轨道交通的客运量增加了 90%。公共交通与私人交通之间正在 进行一场博弈。 Over the past 5 years, Shanghais private cars have increased by 91%, and the rail transit passenger volume has increased by 90%. A game between public transport and private transport is underway. 此次交通调查准备调查7.5万家 庭。若每个家庭平均人口以4人计算， 将涉及30万人。 This time, the traffic investigation will prepare to investigate up to 75,000 homes. If the average population per family is calculated as 4 people, up to 300,000 people would be involved. 上海目前常住人口为2400万人， 也就是说，通过实际调查，我们可 以了解大约1/80上海市民的交通行 为。 At present, Shanghai resident population have 24 million people, that is to say, through the investigation, we can learn the traffic actions of about 1/80 Shanghai residents. 在大数据和云计算时代，我们 能否做得更有效率？ Can we do more efficiently in the era of big data and cloud computing ？ 上海共有400万张交通卡，每天 大约能产生3200万个数据，其中包括 每张交通卡进出地铁闸机的时间与地 点，There are a total of 4 million traffic cards in Shanghai, and each day they can produce up to 32 million data, including the time and locations of every card’s getting in and out of the subway turnstiles. 据此可了解上海轨道交通客流的 路径分布。 According to this data, the distribution of Shanghai Rail Transit passenger flow paths could be learned about. 上海大约有5万辆出租汽车，根 据GPS及测速装置，就可了解道路交 通的客流分布、拥堵路段及其拥堵 程度。 There are about 50,000 taxis in Shanghai. According to the GPS and speed measuring device, you can learn about the distribution of the road traffic passenger flow, congested roads and congestion levels. 据此可为汽车驾驶员提供实时 指路服务，以最大限度地缓解拥堵。 The real-time directions services could be provided for drivers accordingly, so as to ease the congestion to the greatest degree. 上海有2000多万部智能手机， 上海有4万个基站，而交通调查时的 交通分区仅几百个。 There are 20 million smart p