The trouble is that Dr Huppert is right and Ms Villiers is wrong; most cycling infrastructure in this country is useless or worse. The manual for streets does not descend to detail on the design requirements for cycling infrastructure but this is to be found in the sister document, Cycle Infrastructure Design
Take this example, on my commute home from work
7.4.1 A cycle lane offers cyclists some separation from motor traffic. Under the National Cycle Training Standards, cyclists are trained to ride in a safe position in the carriageway which is usually at least 1 metre from the kerb edge to avoid gulley grates and debris, and to ensure that they are within the sightlines of drivers waiting at side roads.
"7.4 Cycle lane widths
7.4.2 Cycle lanes should be 2 metres wide on busy roads, or where traffic is travelling in excess of 40 mph. A minimum width of 1.5 metres may be generally acceptable on roads with a 30 mph limit. For cycle feeder lanes to advanced stop line arrangements, a minimum width of 1.2m may be acceptable. Cycle lanes less than 1.2 metres wide cannot easily accommodate tricycles or childcarrying cycle trailers wholly within the lane.
7.4.3 Cyclists can overtake each other within a 2metre wide lane and easily remain within it when looking back to check for traffic, or when avoiding kerbside drainage grates, etc. Drivers do not always realise that cyclists need to move away from the kerb to avoid surface hazards and may expect cyclists to stay in lane regardless of its width. A narrow cycle lane may therefore give motorists (misplaced) confidence to provide less clearance while overtaking than they would in the absence of a cycle lane."
That last part is too true
What should cyclists do faced with this hopeless provision? Ideally, we should ignore the lane and ride as though it was not there, but that runs a greater than usual risk of attracting aggression from uncomprehending motorists. I tend to follow John Franklin's suggestion of straddling the line. This is hardly ideal and Government complacancy about the design of our streets clearly needs to be dispelled. It would be much safer if the cycle lane were just removed.