t0 = new Turtle(is.pos, Math.toDegrees(Angle.angle(is.pos, r.a.pos)));
}
Turtle t1 = new Turtle(t0.pos, t0.angle);
//move out to sides of roads
t0.turn(90);
t1.turn(-90);
t0.move(radius);
t1.move(radius);
Coordinate t0Start = new Coordinate(t0.pos);
Coordinate t1Start = new Coordinate(t1.pos);
//return to first orientation