Calculate travel time and distance with OpenStreetMap data using the Open Source Routing Machine (OSRM)

In this article, we introduce the osrmtime command, which calculates the distance and travel time between two points using latitude and longitude information. The command uses the Open Source Routing Machine (OSRM) and OpenStreetMap to find the optimal route by car, by bicycle, or on foot. The procedure is specially built for large georeferenced datasets. Because it is fast, the command uses the full computational capacity of a PC, allows the user to make unlimited requests, and is independent of the Internet and commercial online providers. Hence, there is no risk of the command becoming obsolete. Moreover, the results can be replicated at any time.本文介绍了`osrmtime`命令，该命令可基于经纬度信息计算两点间的距离与出行耗时。该命令依托开源路由机（Open Source Routing Machine，OSRM）与开放街道地图（OpenStreetMap），可规划驾车、骑行或步行的最优路径。此工具专为大规模地理参考数据集量身打造，其运行速度迅捷，可充分利用个人计算机的全部计算算力，支持用户发起无限制请求，且无需依赖互联网与商业在线服务提供商，因此不存在命令失效的风险。此外，其计算结果可随时复现。