You have a identified a number of criteria to assess movement handling of a new junction design – some in qualitative terms (quality of provision for walking /cycling / buses) and some in quantitative terms. The quantitative criteria are “Traffic capacity / queue lengths” and “Volume of vehicles”.

“Traffic capacity / queue lengths” are measurable but what is more relevant to people’s journey is the time taken to transit the junction. Could that measurement be added to the list (or even replace Traffic capacity / queue lengths)? You would need to look separately at time taken for a person to transit the junction by each mode ie on foot, by bike, by bus/taxi, by car/van. The weakness of the design previously issued by the council was that someone on foot or by bike would have needed to make 4 separate crossings (waiting at each !!) to cross just one road.

“volume of vehicles” is a useful but limited measure as it doesn’t take account of the fact that some vehicles (buses) carry large numbers of people, but most vehicles (cars) usually carry just one. If you used ‘volume of people’ instead or as well as ‘volume of vehicles’ you would be able to quantify the effect of designs which gave more or less priority to buses. People also transit the junction by bike and by foot. Could/should we quantify those volumes? (noting that there is a separate intention to provide better cycle routes and that this will lead to an increase in numbers of people on bicycles, and the better the crossings at Blue House for people on foot or by bike, the more people will go on foot or by bike )