## About

The Open Source Routing Machine is a high performance routing engine written in C++11 designed to run on OpenStreetMap data.

## Current build status

| build config | status |
|:-------------|:-------|
| Linux        | [![Build Status](https://travis-ci.org/Project-OSRM/osrm-backend.png?branch=master)](https://travis-ci.org/Project-OSRM/osrm-backend) |
| Windows      | [![Build status](https://ci.appveyor.com/api/projects/status/4iuo3s9gxprmcjjh)](https://ci.appveyor.com/project/DennisOSRM/osrm-backend) |
| Coverage     | [![codecov](https://codecov.io/gh/Project-OSRM/osrm-backend/branch/master/graph/badge.svg)](https://codecov.io/gh/Project-OSRM/osrm-backend) |

## Contact

- IRC: server `irc.oftc.net`, channel: `#osrm` (see: `https://www.oftc.net`, and for a webchat: `https://webchat.oftc.net`)
- Mailinglist: `https://lists.openstreetmap.org/listinfo/osrm-talk`

## Building

For instructions on how to [build](https://github.com/Project-OSRM/osrm-backend/wiki/Building-OSRM) and [run OSRM](https://github.com/Project-OSRM/osrm-backend/wiki/Running-OSRM), please consult [the Wiki](https://github.com/Project-OSRM/osrm-backend/wiki).

To quickly try OSRM use our [free and daily updated online service](http://map.project-osrm.org)

## Documentation

### Full documentation

- [osrm-routed HTTP API documentation](docs/http.md)
- [libosrm API documentation](docs/libosrm.md)

### Quick start

Building OSRM assuming all dependencies are installed:

```
mkdir -p build
cd build
cmake .. -DCMAKE_BUILD_TYPE=Release
cmake --build .
sudo cmake --build . --target install
```

Loading preparing a dataset and starting the server:

```
osrm-extract data.osm.pbf -p profiles/car.lua
osrm-contract data.osrm
osrm-routed data.osrm
```

Running a query on your local server:

```
curl http://127.0.0.1:5000/route/v1/driving/13.388860,52.517037;13.385983,52.496891?steps=true&alternatives=true
```

### Running a request against the Demo Server

First read the [API usage policy](https://github.com/Project-OSRM/osrm-backend/wiki/Api-usage-policy).

Then run simple query with instructions and alternatives on Berlin:

```
curl https://router.project-osrm.org/route/v1/driving/13.388860,52.517037;13.385983,52.496891?steps=true&alternatives=true
```

## References in publications

When using the code in a (scientific) publication, please cite

```
@inproceedings{luxen-vetter-2011,
 author = {Luxen, Dennis and Vetter, Christian},
 title = {Real-time routing with OpenStreetMap data},
 booktitle = {Proceedings of the 19th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems},
 series = {GIS '11},
 year = {2011},
 isbn = {978-1-4503-1031-4},
 location = {Chicago, Illinois},
 pages = {513--516},
 numpages = {4},
 url = {http://doi.acm.org/10.1145/2093973.2094062},
 doi = {10.1145/2093973.2094062},
 acmid = {2094062},
 publisher = {ACM},
 address = {New York, NY, USA},
}
```