1. A method for selecting a subset of traffic sensors, wherein the method comprises: modeling multiple sensor types to generate at least one sensor model; creating a sample space of at least one sensor combination of multiple sensors; modeling traffic movement of a region; running a traffic simulation based on the at least one sensor model, the sample space of at least one sensor combination and traffic movement of the region, wherein the traffic simulation generates multiple candidate sets of sensors and measures a sensing error distribution entailed in each of the multiple candidate sets of sensors; selecting a subset of the multiple sensors from the multiple candidate sets of sensors based on the sensing error distribution entailed in each of the multiple candidate sets of sensors and at least one additional criterion; and filtering the selected subset of the multiple sensors, wherein said filtering comprises removing a sensor combination from the sample space above an error threshold; wherein at least one of the steps is carried out by a computer device.