Three dimensional modelization of aerial elements of the Geneva public transport network using mobile scanning systems

Abstract

This paper presents an application of mobile scanning systems in the urban area of Geneva done by HKD Géomatique SA. In order to facilitate the maintenance of the public transport network, a full three dimensional modelization of the aerial objects was created with a precision of 20 centimetres. Numerous quality controls were performed to assess the required precision. In the end, 38 517 point objects and 428.2 kilometres of linear entities with attributes were digitized and stored in a geodatabase1. Moreover, this model is accessible for everyone conforming to the openData approach through the web mapping service of Geneva2. This access will thus enable further development and applications.