good shots of trucks and vans inc carrols bullnose ■■■■■■ luton, and a cavewood f88/9 left ■■■■■■ around the one minute mark
britishpathe.com/record.php?id=73944
It’s amazing how many British made cars a trucks there are in this. It also seams that White Van Man was around then too,but with a VW Combi.
I also like the old fella on his push bike going hard up the inside lane.
Cracking bit of film but looks a bit later than 1970 imo.
Judging by a few of the reg nos and vehicles looks more like 73/4 ish ?
Spotted one motor ,that is probably best forgotten - the Ford “A series” - did anyone else have the misfortune of driving one of those sacks of cac - fitted with a York diesel ? 
Did you see the Scammel tipper with…hold your breath…a sheet over the load 
I agree the date is somewhat later.
d-series at 2.20 mark got a tir plate on the front,as for the a series i drove one a flat in 1986 wrexham to llangollen with timber couple of times a week, iirc used to have to clean the fuel filter a glass bowl affair then plenty of easy start. 
See, it was all the same back then. Tailgating, switching lanes without indicating and traffic merging without giving way.
Only time you’ll see a VW combi keeping up with traffic flow.
It must be post '77 as there is a MkIV Ford Cortina in it plus a Triumph TR7 and and a Rover SD1. Changed days when you see just how many of the vehicles in this clip were UK built.