# pgRouting Manual (3.1)

## Introduction

pgRouting is an extension of PostGIS and PostgreSQL geospatial database and adds routing and other network analysis functionality. A predecessor of pgRouting – pgDijkstra, written by Sylvain Pasche from Camptocamp, was later extended by Orkney and renamed to pgRouting. The project is now supported and maintained by Georepublic, Paragon Corporation and a broad user community.

pgRouting is part of OSGeo Community Projects from the OSGeo Foundation and included on OSGeoLive.

## Licensing

The following licenses can be found in pgRouting:

License |
GNU General Public License v2.0 or later | Most features of pgRouting are available under GNU General Public License v2.0 or later.
Boost Software License - Version 1.0 | Some Boost extensions are available under Boost Software License - Version 1.0.
MIT-X License | Some code contributed by iMaptools.com is available under MIT-X license.
Creative Commons Attribution-Share Alike 3.0 License | The pgRouting Manual is licensed under a Creative Commons Attribution-Share Alike 3.0 License.

In general license information should be included in the header of each source file.

## Contributors

### This Release Contributors

#### Individuals (in alphabetical order)

Cayetano Benavent, Daniel Kastl, Esteban Zimanyi, Imre Samu, Martha Vergara, Mohamed Bakli, Mahmoud Sakr, Regina Obe, Virginia Vergara

And all the people that give us a little of their time making comments, finding issues, making pull requests etc. in any of our products: osm2pgrouting, pgRouting, pgRoutingLayer.

#### Corporate Sponsors (in alphabetical order)

These are corporate entities that have contributed developer time, hosting, or direct monetary funding to the pgRouting project:

- Georepublic

- Google Summer of Code

- Leopark

- Paragon Corporation

### Contributors Past & Present:

#### Individuals (in alphabetical order)

Aasheesh Tiwari, Aditya Pratap Singh, Adrien Berchet, Akio Takubo, Andrea Nardelli, Anthony Tasca, Anton Patrushev, Ashraf Hossain, Cayetano Benavent, Christian Gonzalez, Daniel Kastl, Dave Potts, David Techer, Denis Rykov, Ema Miyawaki, Esteban Zimanyi, Florian Thurkow, Frederic Junod, Gerald Fenoy, Gudesa Venkata Sai Akhil, Hang Wu, Imre Samu, Jay Mahadeokar, Jinfu Leng, Kai Behncke, Kishore Kumar, Ko Nagase, Mahmoud Sakr, Manikata Kondeti, Mario Basa, Martin Wiesenhaan, Maxim Dubinin, Maoguang Wang, Mohamed Bakli, Mohamed Zia, Mukul Priya, Razequl Islam, Regina Obe, Rohith Reddy, Sarthak Agarwal, Sourabh Garg, Stephen Woodbridge, Sylvain Housseman, Sylvain Pasche, Vidhan Jain, Virginia Vergara

#### Corporate Sponsors (in alphabetical order)

These are corporate entities that have contributed developer time, hosting, or direct monetary funding to the pgRouting project:

- Camptocamp

- CSIS (University of Tokyo)

- Georepublic

- Google Summer of Code

- iMaptools

- Leopark

- Orkney

- Paragon Corporation

- Versaterm Inc.

## More Information

- The latest software, documentation and news items are available at the pgRouting web site https://pgrouting.org.

- PostgreSQL database server at the PostgreSQL main site https://www.postgresql.org.

- PostGIS extension at the PostGIS project web site https://postgis.net.

- Boost C++ source libraries at https://www.boost.org.

- The Migration guide can be found at https://github.com/pgRouting/pgrouting/wiki/Migration-Guide.