function lastStepHaltingNumber = getLastStepHaltingNumber(edgeID)
%getLastStepHaltingNumber Get the number of halting vehicles.
%   lastStepHaltingNumber = getLastStepHaltingNumber(EDGEID) Returns the 
%   total number of halting vehicles for the last time step on the given 
%   edge. A speed of less than 0.1 m/s is considered a halt.

%   Copyright 2015 Universidad Nacional de Colombia,
%   Politecnico Jaime Isaza Cadavid.
%   Authors: Andres Acosta, Jairo Espinosa, Jorge Espinosa.
%   $Id: getLastStepHaltingNumber.m 20 2015-03-02 16:52:32Z afacostag $

import traci.constants
lastStepHaltingNumber = traci.edge.getUniversal(constants.LAST_STEP_VEHICLE_HALTING_NUMBER, edgeID);