for (TransferNode tree : transfers.getTransfers()) {
TPState pathState = TPState.start(queryData, tree);
Vertex fromVertex = new WalkToStopVertex(_context, _stop);
Vertex toVertex = new TPDepartureVertex(_context, pathState);
EdgeNarrative narrative = narrative(s0, fromVertex, toVertex);
StateEditor edit = s0.edit(this, narrative);
edit.incrementTimeInSeconds(options.minTransferTime);