General   (General discussion, talk about anything.)

Improved flowrate between Woodhouse lane and Marsh green would indeed occur if another lane was put where it was initially intended along Scot lane.
Therefore to make it SIMPLE for you, another lane = improved flow rate between the above 2 points.

Sir I appologise for my apparent harshness, but maintain your theory is flawed......
Between your two points are 3 sets of lights, 1 RH Tee-junction and 1 mini roundabout. These together with vehicle volume are the reason for the reduced flowrate and ultimate congestion. Widening the road on its own will not allow vehicles to pass through them any quicker. Flow rate between them and I emphasise between them may improve but there will be negligable improvement over the full length of the road over any given period of time. The priority needs to be to get vehicles through these bottlenecks quicker thereby improving flowrates and reducing congestion. This can not be acheived by widening the road as a stand alone project.

People assume that widening a road automaticaly increases the flowrate, this is not always true, it increases its capacity. The flowrate of a road depends on how fast vehicles can travel between certain points. In the case we are talking about there are a number of junctions along the way which slow traffic down and reduce average speed, the fact they are closely spaced compounds the issue.

You can compare Scot Lane to a length of water pipe partialy constriced in several places over its length by the junctions mentioned, rather than removing or reducing the effect the constrictions have, you are suggesting increasing the pipe size either side of them........unfortunately it does not solve the problem.