Quantifying the potential of ride-sharing using call description records

摘要: Ride-sharing on the daily home-work-home commute can help individuals save gasoline and other car-related costs, while at same time reducing traffic pollution in city. Work this area has typically focused technology, usability, security, legal issues. However, success of any ride-sharing technology relies implicit assumption that human mobility patterns city layouts exhibit enough route overlap to allow for first place. In paper we validate using data extracted from city-wide Call Description Records (CDRs) Madrid. We derive an upper bound effectiveness by making simplifying commuter share a ride with as long their routes overlap. show simple among people having neighboring home work locations reduce number cars expense relatively short detour pick up/drop off passengers; e.g., 0.6 km detour, there is 52% reduction cars. Smartphone enables additional passengers be picked up along way, which further cars, much 67%.