lane must be included in a 10m wide (8.5m for sections limited to 110 km/h) security zone without obstacles (in case the security zone includes an upwards slope, it is limited to the line where the slope reaches a height of 3m). presence of emergency call boxes every on each side, that allow to call for help with the possibility to locate the call; some call boxes have flashing light that warn when there is a problem ahead; rest areas (aire de repos, i.e. car park with public toilets) every (4–6 minutes of driving) and service areas (aire de service with a least a gas station) every (20–30 minutes of driving) - on most recently built autoroutes these distances may be longer, up to 30/60km; regularly patrolling security services, to clear any obstacle and protect drivers in trouble (usually a breakdown or a flat tyre) with appropriate warning signs and beacons; dynamic information panels that warn about possible difficulties ahead (e.g. accident, roadworks, traffic jam); a radio station (107.7 MHz in FM) provides traffic information bulletins every 15 minutes (with a report in English in certain areas) and breaking news for emergencies; on heavy traffic days (e.g. beginning and end of school holidays), specific information and recreation events may be organised in rest areas; radars automatiques (speed cameras) are installed in many locations, and announced by a specific road sign. Safety results Fatalities on motorways have decreased between 2002 and 2016. Fatalities accidents scenario On French motorways, in 2016, 121 fatal accidents are direct/initial accidents representing 82% of fatal accidents, 16 (11%) fatal accidents occurs after a previous accident, and 10 (7%) fatal accidents occur after an incident. Three scenarios catch two-thirds of initial accidents: A01 simple collision of two vehicle without direction change A06 crash on protection system such as safety traffic barrier A05 loss of vehicle control Fatalities and accidents remaining factors Most of fatalities occur by night. Several factor of accidents are more highly probable by night in proportion to the traffic, although inattentiveness remains risky during the day. Young drivers Young drivers between 18 and 34 years old represent 19% of motorway drivers, but they are overrepresented in fatal motor vehicle collisions and are involved in more than half of fatal accidents. Pedestrians Although pedestrians are forbidden on motorways in conformity with the Vienna Convention, they are still sometimes killed on motorways. In case a vehicle