* had
*/
if (sequence == 0)
return 0;
BlockConfigurationEntry blockConfig = nextStop.getTrip().getBlockConfiguration();
BlockStopTimeEntry previousStop = blockConfig.getStopTimes().get(
sequence - 1);
int slack = nextStop.getAccumulatedSlackTime()
- previousStop.getAccumulatedSlackTime();
slack -= previousStop.getStopTime().getSlackTime();