The original post pic shows a dual-carriageway with a narrow central reservation. The gap for the entrance to the right would allow vehicles to turn right into, and out of. Vehicles turning in from the dual-carriageway can sit in the central gap, parallel to the traffic, but their view ahead would be restricted if vehicles were parked along the centre. This could be dangerous when they turn having missed an oncoming car.
Similarly, cars turning out have to move across 4 lanes of traffic to turn right, they need a view to ensure safety and cars on the central divide will obscure that view. Being dark, you'd expect all cars to be using headlights, so you'd know if they are coming, but although it appears to be 40mph limit, there is street lighting, so some could be driving on sidelights only.
The OP needs to post the offence code as requested if any help is to be forthcoming.