With increasing traffic on the roads and the introduction of unmanned cars the need for event and crash recorders is essential. The recorders are essential for verifying the events before and during a crash. This is needed for identifying the reasons for a crash. With the road network fast increasing it is not possible to set up surveillance cameras and to rely wholly upon them. A system is also needed to inform the relevant authorities in case of accidents. © 2017 Elsevier B.V., All rights reserved.