* a string identifying a lane
* @return number of halting vehicles within the last time step
*/
public static SumoCommand getLastStepHaltingNumber(String laneID){
return new SumoCommand(Constants.CMD_GET_LANE_VARIABLE, Constants.LAST_STEP_VEHICLE_HALTING_NUMBER, laneID, Constants.RESPONSE_GET_LANE_VARIABLE, Constants.TYPE_INTEGER);
}