* Add street-to-stop edges
****/
WalkToStopVertex walkToStopVertex = new WalkToStopVertex(context, stop);
if (linker.determineIncomingEdgesForVertex(walkToStopVertex, true)) {
GraphVertex gv = graph.getGraphVertex(walkToStopVertex.getLabel());
WaitingBeginsAtStopEdge edge = new WaitingBeginsAtStopEdge(context,
stop, false);
edge.setFromVertex(walkToStopVertex);
gv.addOutgoing(edge);