public boolean changeOK(Moveable me, Moveable fOld, Moveable fNew, Moveable bNew) {
// fOld: front veh on old lane;
// fNew,bNew: front,back vehicle on new lane;
double gapFront = fNew.position() - me.position() - me.length();
if (gapFront <= gapMin) {
return false;
}
double gapBack = me.position() - bNew.position() - bNew.length();
if (gapBack <= gapMin) {
return false;
}
// safety criterion (a>-bsave);
double bNew_acc = bNew.model().calcAcc(bNew, me);
if (bNew_acc < -bsave) {
return false;
}
double my_acc = me.model().calcAcc(me, fNew);
if (my_acc < -bsaveSelf) {
return false;
}
// incentive criterion (always model of BACK vehicle used!!)
// works also for on-ramp: on-ramp has 1 lane with index 0
// === LEFT on main road -> strong desired to change =
// large positive biasRight for lcModel of ramp vehicles
double my_adv =
my_acc - me.model().calcAcc(me, fOld) + ((me.lane() == LEFT) ? 1 : -1) * biasRight;
double others_disadv = bNew.model().calcAcc(bNew, fNew) - bNew_acc;
if (others_disadv < 0) {
others_disadv = 0;
}
return my_adv - p * others_disadv > db ? true : false;
}
