1. Laurgeau Claude : Le siécle de la voiture intelligente – Presse des Mines, Paris. ISBN:978-2-911256-10-3
2. Towards a European road safety area: policy orientations on road safety 2011–2020.
http://ec.europa.eu/transport/road_safety/pdf/com_59_en.pdf
3. Headway.
http://en.wikipedia.org/wiki/Headway
4. Car sharing and car pooling.
http://en.wikipedia.org/wiki/Car_sharing
5. Personal rapid transit (PRT).
http://en.wikipedia.org/wiki/Personal_rapid_transit