pgRouting not only allows to get routes for any kind of transportation, from 0 wheels to 18 wheeler. A road is closed? Calculate how can traffic be diverted. Don't get a result? Check if your graph is connected. Need to deliver to several clients? Traveling Salesperson problem helps to determine the route. Find out what is planned for version 4.0 that is a work in progress. Learn about the spin off for vehicle routing problems. pgRouting extends the PostGIS / PostgreSQL geospatial database to provide geospatial routing functionality. Advantages of the database routing approach are: - Data and attributes can be modified by many clients, like QGIS through JDBC, ODBC, or directly using Pl/pgSQL. The clients can either be PCs or mobile devices. - Data changes can be reflected instantaneously through the routing engine. - The “cost” parameter can be dynamically calculated through SQL and its value can come from multiple fields or tables.