Monday. Smart motorway. The M1 heading south. Serious accident 350 yards up from us.. Four lanes of stationary traffic.
No lane for emergency vehicles. The incident commander and someone from fire brigade came running between the vehicles. Smart motorways my 4rse.
That's not exclusively a smart motorway problem, but no hard shoulder really doesn't help matters.
One day, they'll figure out that you can approach the scene from the other direction at the next junction.
Rather a ridulous statement - the emergency services would NEVER approach the scene of accident by travelling against the direction of the traffic flow, even if 4 lanes were blocked due to collision. It is very rare that 4 lanes are actually totally blocked, and after the initial aftermath prior to the arrival of the emergency services, drivers that feel their presence at the scene to assist or give their details as a witness is no longer necessary, or a stricken vehicle is moved, they will manoeuvre past the scene and continue on their journey, only to be met by emergency vehicles travelling opposite direction? A big no no.

The other point that you haven't considered is any vehicles that may have previously stopped in an emergency refuge between the scene and the next junction for whatever reason who then continue on their journey only to be confronted by emergency service vehicles travelled towards them.
Travelling against the normal flow of traffic would only be considered once a police vehicle has travelled from the scene to the next junction to check for any potential.problems or previously stranded vehicles, and then and only then once they area is sterile, would any emergency or recovery vehicles be permitted access from the opposite direction, but that would only be as a last resort.
Use yer noddle.....