1 package org.opentrafficsim.road.gtu.lane.perception.categories;
2
3 import org.djunits.value.vdouble.scalar.LinearDensity;
4 import org.djunits.value.vdouble.scalar.Speed;
5 import org.opentrafficsim.base.parameters.ParameterException;
6 import org.opentrafficsim.road.gtu.lane.perception.RelativeLane;
7
8 /**
9 * Perception of general traffic ahead.
10 * <p>
11 * Copyright (c) 2013-2019 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved. <br>
12 * BSD-style license. See <a href="http://opentrafficsim.org/node/13">OpenTrafficSim License</a>.
13 * <p>
14 * @version $Revision$, $LastChangedDate$, by $Author$, initial version 13 mrt. 2018 <br>
15 * @author <a href="http://www.tbm.tudelft.nl/averbraeck">Alexander Verbraeck</a>
16 * @author <a href="http://www.tudelft.nl/pknoppers">Peter Knoppers</a>
17 * @author <a href="http://www.transport.citg.tudelft.nl">Wouter Schakel</a>
18 */
19 public interface TrafficPerception extends LaneBasedPerceptionCategory
20 {
21
22 /**
23 * Returns the perceived speed on the given lane.
24 * @param lane RelativeLane; lane
25 * @return Speed perceived speed on the given lane
26 * @throws ParameterException on parameter exception
27 */
28 Speed getSpeed(RelativeLane lane) throws ParameterException;
29
30 /**
31 * Returns the perceived density on the given lane.
32 * @param lane RelativeLane; lane
33 * @return LinearDensity perceived density on the given lane
34 * @throws ParameterException on parameter exception
35 */
36 LinearDensity getDensity(RelativeLane lane) throws ParameterException;
37
38 }