Drivers are urged to be patient, follow instructions from emergency personnel and keep out of the hard shoulder, in the event of a collision.

Traffic volumes on the M50 have grown every year since 2011,– and now stand at 140 thousand cars a day.

Gardai, Dublin Fire Brigade, Dublin City Council and Transport Infrastructure Ireland are explaining how they manage a critical incident on the motorway.

Juliette Gash reports;

Last week @GardaTraffic stopped a driver doing 243 kph on the M50. There's no planning for that @TodayFMNews pic.twitter.com/ntzXUigrFj

— Juliette Gash (@JulietteGash) November 30, 2016