Imagine if the city master planners, the relevant transport bodies and private sector invested in building an amazing network of rail lines that could whisk you from any major neighborhood to another in a matter of minutes.
Such a system could have several major positive impacts. It could decrease the number of cars and buses on roads. This process would create millions of jobs and reduce the number of auto accidents that the city experiences every year.
It would allow for more productivity. When you board a train with WiFi, you are able to keep working in a way that you are unable to do in a hot and stuffy public bus or van. This will get commuters off the highways, saving energy and lessening environmental impact.