The need for increased capacity on travelled lines can be addressed in a number of ways. Firstly, highways still can be expanded. Highways are much more versatile than rail services as they enable people to get from a single destination to another without any transfers. Given then that highways can be improved, it makes very little sense to not do so and improve the rail system later when this extra capacity created begins to fill up. [1]  Given that cities have different requirements of transport, it makes more sense to allow transport planning to remain decentralised. For example, California is creating a high speed transport system on its state budget because it has need, assuming that other cities do when their governing structures have not determined that is the case is irresponsible and unneeded. [2]  [1] Mobley, Jack. “A Case Against High-Speed Rail.” Merced Sun Star. 11/12/2010   [2] “On the wrong track: Why high-speed trains are not such a green alternative.” The Guardian. 29/04/2010