Simulation is the tool of choice for the large-scale performance evaluation of upcoming telecommunication networking paradigms that involve users aboard vehicles, such as next-generation cellular networks for vehicular access, pure vehicular ad hoc networks, and opportunistic disruption-tolerant networks. The single most distinguishing feature of vehicular network simulation lies in the mobility of users, resulting from complex macroscopic and microscopic dynamics. Today' s challenge lies in generating traffic traces that (i) compass very large urban areas, i.e., whole cities including their surroundings, and (ii) are realistic also from a macroscopic point of view, i.e., that faithfully mimic large traffic flows across a metropolitan area.
In this website, we contribute to the endeavor of developing such a reference dataset, by presenting original synthetic traces that are generated from high-resolution real-world traffic counts. They describe road traffic on three highways near Madrid, Spain, for different timespans of several working days.
Our simulator generates road traffic traces that are representative of unidirectional free flow highway traffic in a quasi-stationary state, i.e., such that comparable traffic conditions are present in between the in-flow and out-flow boundaries of the simulated road segments.
The car following implemented by our simulator are IDM and MOBIL. Both models have been validated by the transportation research community, and are widely adopted for the simulation of vehicular networks.
The simulator uses an original model parameter calibration that works on a per-vehicle basis. More details can be found in the Publications section.
The synthetic traces we present in this paper are based on empirical data that comes from real-world measurements carried out in the region of Madrid, Spain. The data, kindly provided to us by the Spanish office for the traffic management (Dirección General de Tráfico, DGT), and the Madrid City Council, details the vehicular traffic conditions on the following three arterial highways: M30, M40 and A6.
The final synthetic traces are composed of one day-long trace describing road traffic over the four lanes of M30, and sixteen 30-minute traces of vehicular mobility along M40 and A6, for different day and hour combinations. The traces record the position of each vehicle at every 500 ms, over a 10-Km road stretch.
More information about the dataset can be found in the following papers:
- M. Gramaglia, O. Trullols-Cruces, D. Naboulsi, M. Fiore and M. Calderon, Vehicular Networks on Two Madrid Highways. IEEE SECON, June 2014.
- M. Gramaglia, M. Fiore and M. Calderon, Measurement-based modeling of inter-arrivals for the simulation of highway vehicular networks. IEEE Communications Letters, Volume 18, Issue 12. 2014.
The simulator source code is available here. A README file with all the instructions for building and running the simulator is included.