A rapid survey carried out by OCHA during the last week of 2015 found that since the escalation in violence in October 2015, Israeli security forces have deployed 91 new obstacles (checkpoints, roadblocks, earth mounds, etc.) on West Bank roads to restrict Palestinian vehicular movement. This figure includes only those obstacles involving some kind of fixed infrastructure on the ground, thus excluding ad-hoc “flying” checkpoints (see table and map below). These obstacles are in addition to 452 pre-existing obstacles, representing a 20 per cent increase in their overall number.