手机数据帮助规划公交路线

IBM的研究人员根据非洲象牙海岸500万匿名手机用户的通话记录,确定该用户打电话时的大致位置,得出结论该地区需要延长一条、新增两条公交线路。如果结合城市数据来优化公交网络的话,还可大幅减少当地人的出行时间。该数据还可用来帮助城市规划人员更好地规划基础设施项目,如电动汽车充电站、自行车租借处等。
【文章全文】

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Mobile phone data redraws bus routes in Africa

By Jane Wakefield

Researchers at IBM have redrawn the bus routes of Ivory Coast's largest city using mobile phone data.

The research was completed as part of the Data for Development competition run by Orange which released 2.5 billion call records from five million mobile phone users in Ivory Coast.

The anonymised data is the largest of its kind ever released.

Such data could be used by urban planners for new infrastructure projects, said IBM.

Currently the project is just a research exercise although IBM is hoping to implement it in a number of cities.

Its AllAboard project used call data which pinpoints location based on which phone mast a person is close to when he or she makes a phone call.

While this data is less accurate than GPS data, it provided enough information for the researchers to conclude that the city needed to add two routes to its existing infrastructure and extend another.

They concentrated on bus routes in Abidjan, Ivory Coast's largest city, where the network is made up of 539 large buses, complemented by 5,000 mini-buses and 11,000 shared taxis.

The data looks complex but the project took only a month to complete
"We found that we could reduce the travel times of people by 10% across the city," said Olivier Verscheure, senior scientist at IBM's research laboratory in Dublin.

But the project only scratched the surface of what is possible with such datasets.

"If we could have merged the telco data with city data, such as the bus timetables we could have the potential to completely change the existing network," he said.

Access to such data could play a crucial role in new infrastructure projects such as designing city-wide bike-sharing schemes or charging stations for electric vehicles.

"Analysis of public transport and telco data would show how people move in a city and allow planners to create a bike sharing infrastructure from scratch, for example," said Mr Verscheure.

"It is about understanding how people use a city, their movements and the digital signatures left by public transport to optimise the city's infrastructure."

The project will be presented at a conference at Massachusetts Institute of Technology on 1 May. At the same time the winner of the Orange Data for Development competition will be announced.

【文章名称】Mobile phone data redraws bus routes in Africa
【文章来源】BBC
【文章链接】http://www.bbc.co.uk/news/technology-22357748

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