SUMO - Simulation of Urban MObility
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MSEdgeControl Class Reference

Stores edges and lanes, performs moving of vehicle. More...

#include <MSEdgeControl.h>

Data Structures

struct  LaneUsage
 A structure holding some basic information about a simulated lane. More...
 

Public Member Functions

void changeLanes (SUMOTime t)
 Moves (precomputes) critical vehicles. More...
 
void detectCollisions (SUMOTime timestep, const std::string &stage)
 Detect collisions. More...
 
std::vector< std::string > getEdgeNames () const
 Returns the list of names of all known edges. More...
 
const MSEdgeVectorgetEdges () const
 Returns loaded edges. More...
 
void gotActive (MSLane *l)
 Informs the control that the given lane got active. More...
 
 MSEdgeControl (const std::vector< MSEdge * > &edges)
 Constructor. More...
 
void patchActiveLanes ()
 Resets information whether a lane is active for all lanes. More...
 
 ~MSEdgeControl ()
 Destructor. More...
 
Interfaces for longitudinal vehicle movement
void planMovements (SUMOTime t)
 Compute safe velocities for all vehicles based on positions and speeds from the last time step. Also registers ApproachingVehicleInformation for all links. More...
 
void executeMovements (SUMOTime t)
 Executes planned vehicle movements with regards to right-of-way. More...
 

Private Types

typedef std::vector< LaneUsageLaneUsageVector
 Definition of a container about a lane's number of vehicles and neighbors. More...
 

Private Member Functions

 MSEdgeControl (const MSEdgeControl &)
 Copy constructor. More...
 
MSEdgeControloperator= (const MSEdgeControl &)
 Assignment operator. More...
 

Private Attributes

std::list< MSLane * > myActiveLanes
 The list of active (not empty) lanes. More...
 
std::set< MSLane
*, Named::ComparatorIdLess
myChangedStateLanes
 Lanes which changed the state without informing the control. More...
 
MSEdgeVector myEdges
 Loaded edges. More...
 
LaneUsageVector myLanes
 Information about lanes' number of vehicles and neighbors. More...
 
std::vector< SUMOTimemyLastLaneChange
 The list of active (not empty) lanes. More...
 
std::vector< MSLane * > myWithVehicles2Integrate
 A storage for lanes which shall be integrated because vehicles have moved onto them. More...
 

Detailed Description

Stores edges and lanes, performs moving of vehicle.

In order to avoid touching all lanes, even the empty ones, this class stores and updates the information about "active" lanes, those that have at least one vehicle on them. During longitudinal movement, this can be simply achieved through return values of the MSLane-methods, signalling either that the lane got active or inactive. This is but not possible when changing lanes, we have to go through the lanes, here. Also, we have to add lanes on which a vehicle was inserted, separately, doing this into ("myChangedStateLanes") which entries are integrated at the begin of is step in "patchActiveLanes".

Definition at line 74 of file MSEdgeControl.h.

Member Typedef Documentation

typedef std::vector<LaneUsage> MSEdgeControl::LaneUsageVector
private

Definition of a container about a lane's number of vehicles and neighbors.

Definition at line 209 of file MSEdgeControl.h.

Constructor & Destructor Documentation

MSEdgeControl::MSEdgeControl ( const std::vector< MSEdge * > &  edges)

Constructor.

Builds LaneUsage information for each lane and assigns them to lanes.

Parameters
[in]edgesThe loaded edges
Todo:
Assure both containers are not 0

Definition at line 48 of file MSEdgeControl.cpp.

References myEdges, myLanes, and myLastLaneChange.

MSEdgeControl::~MSEdgeControl ( )

Destructor.

Definition at line 77 of file MSEdgeControl.cpp.

MSEdgeControl::MSEdgeControl ( const MSEdgeControl )
private

Copy constructor.

Member Function Documentation

void MSEdgeControl::changeLanes ( SUMOTime  t)

Moves (precomputes) critical vehicles.

Calls "changeLanes" of each of the multi-lane edges. Check then for this edge whether a lane got active, adding it to "myActiveLanes" and marking it as active in such cases.

See also
MSEdge::changeLanes

Definition at line 141 of file MSEdgeControl.cpp.

References MSEdgeControl::LaneUsage::amActive, MSEdge::changeLanes(), MSEdge::getLanes(), MSEdge::getNumericalID(), MSEdgeControl::LaneUsage::haveNeighbors, myActiveLanes, myLanes, and myLastLaneChange.

Referenced by MSNet::simulationStep().

void MSEdgeControl::detectCollisions ( SUMOTime  timestep,
const std::string &  stage 
)

Detect collisions.

Calls "detectCollisions" of each lane. Shouldn't be necessary if model-implementation is correct. The parameter is simply passed to the lane-instance for reporting.

Parameters
[in]timestepThe current time step
[in]stageThe current stage within the simulation step
Note
see MSNet::simulationStep

Definition at line 171 of file MSEdgeControl.cpp.

References myActiveLanes.

Referenced by MSNet::simulationStep().

void MSEdgeControl::executeMovements ( SUMOTime  t)

Executes planned vehicle movements with regards to right-of-way.

This method goes through all active lanes calling their executeMovements method which causes vehicles to update their positions and speeds. Lanes which receive new vehicles are stored in myWithVehicles2Integrate After movements are executed the vehicles in myWithVehicles2Integrate are put onto their new lanes This method also updates the "active" status of lanes

See also
MSLane::executeMovements
MSLane::integrateNewVehicle
Todo:
When moving to parallel processing, the usage of myWithVehicles2Integrate would get insecure!!

Definition at line 114 of file MSEdgeControl.cpp.

References MSEdgeControl::LaneUsage::amActive, MSEdgeControl::LaneUsage::haveNeighbors, myActiveLanes, myLanes, and myWithVehicles2Integrate.

Referenced by MSNet::simulationStep().

std::vector< std::string > MSEdgeControl::getEdgeNames ( ) const

Returns the list of names of all known edges.

Returns
a vector of names of all known edges

Definition at line 180 of file MSEdgeControl.cpp.

References myEdges.

Referenced by TraCIServerAPI_Simulation::convertCartesianToRoadMap().

const MSEdgeVector& MSEdgeControl::getEdges ( ) const
inline
void MSEdgeControl::gotActive ( MSLane l)

Informs the control that the given lane got active.

Parameters
[in]lThe activated lane
Todo:
Check for l==0?

Definition at line 190 of file MSEdgeControl.cpp.

References myChangedStateLanes.

Referenced by MSLane::incorporateVehicle().

MSEdgeControl& MSEdgeControl::operator= ( const MSEdgeControl )
private

Assignment operator.

void MSEdgeControl::patchActiveLanes ( )

Resets information whether a lane is active for all lanes.

For each lane in "myChangedStateLanes": if the lane has at least one vehicle and is not marked as being active, it is added to the list og active lanes and marked as being active.

Definition at line 82 of file MSEdgeControl.cpp.

References MSEdgeControl::LaneUsage::amActive, MSEdgeControl::LaneUsage::haveNeighbors, myActiveLanes, myChangedStateLanes, and myLanes.

Referenced by MSNet::simulationStep().

void MSEdgeControl::planMovements ( SUMOTime  t)

Compute safe velocities for all vehicles based on positions and speeds from the last time step. Also registers ApproachingVehicleInformation for all links.

This method goes through all active lanes calling their "planMovements" method.

See also
MSLane::planMovements

Definition at line 100 of file MSEdgeControl.cpp.

References myActiveLanes, and myLanes.

Referenced by MSNet::simulationStep().

Field Documentation

std::list<MSLane*> MSEdgeControl::myActiveLanes
private

The list of active (not empty) lanes.

Definition at line 215 of file MSEdgeControl.h.

Referenced by changeLanes(), detectCollisions(), executeMovements(), patchActiveLanes(), and planMovements().

std::set<MSLane*, Named::ComparatorIdLess> MSEdgeControl::myChangedStateLanes
private

Lanes which changed the state without informing the control.

Definition at line 221 of file MSEdgeControl.h.

Referenced by gotActive(), and patchActiveLanes().

MSEdgeVector MSEdgeControl::myEdges
private

Loaded edges.

Definition at line 206 of file MSEdgeControl.h.

Referenced by getEdgeNames(), getEdges(), and MSEdgeControl().

LaneUsageVector MSEdgeControl::myLanes
private

Information about lanes' number of vehicles and neighbors.

Definition at line 212 of file MSEdgeControl.h.

Referenced by changeLanes(), executeMovements(), MSEdgeControl(), patchActiveLanes(), and planMovements().

std::vector<SUMOTime> MSEdgeControl::myLastLaneChange
private

The list of active (not empty) lanes.

Definition at line 224 of file MSEdgeControl.h.

Referenced by changeLanes(), and MSEdgeControl().

std::vector<MSLane*> MSEdgeControl::myWithVehicles2Integrate
private

A storage for lanes which shall be integrated because vehicles have moved onto them.

Definition at line 218 of file MSEdgeControl.h.

Referenced by executeMovements().


The documentation for this class was generated from the following files: