Since 1921
The environment is based on three key tools: the ArcGIS geographical information system (GIS) necessary to build the network, the AIMSUN traffic simulator, and the TRANSYT traffic-plan optimiser.
These three applications make up the core of the system, although over 20 applications have
been developed to assure the integration of these tools with Seville City Council’s information
system and with one another.
Once the Seville network was in place with the GIS system, the AIMSUN simulation environment
was built with the aid of import software.
Once the simulation has been viewed, it can be optimised with the aid of TRANSYT.
The results of the optimisation can then be uploaded into the simulator to view the final
result.
A network of 988 kilometres of roads has been created, with a total length of 1,769
kilometres of lanes, made up of 7,396 road sections.
11.075 turns define all the possible movements at the 1,530 intersections simulated, of which
480 are controlled by traffic lights, to cover up the entire road network.
The interface software means that a simulation environment of the city’s traffic-light
network can be set up at any time for any given time of day.
Once the simulation scenario has been obtained, the network can be modified simply to
determine the impact that any action would have on the organisation of the city’s traffic.
