SIR – It is hard to believe that we are considering spending billions of pounds on creating underpasses at traffic bottlenecks.

By the time that these are completed, the traffic volume will have increased to a level where the problem will be so much worse that the underpass will be ineffective.

Surely the problem is the increasing population. If we allow this to continue then we just build more homes and roads, and put more vehicles into already congested areas.

Surely the answer is to reduce the population, thus reducing the volume of traffic and make the problem go away. Looking to the future. We will eventually run out of crude oil, making traffic as we now know it, obsolete.

Why not look at alternative methods of moving people and goods around in a different and more efficient way?

Keith Rayner, Laburnum Drive, Baildon