Now, ultimately, adding new roads to our existing road network doesn't solve our problem with congestion; it adds to it. If we plan all of our new housing just around highways, then the people who live in those new housing developments are going to be stuck in their cars, getting on the existing network, making traffic worse, increasing emissions, increasing cost. So while it absolutely makes sense that a huge percentage should be spent on safety and maintenance of our existing road network, it doesn't make sense that we should be spending so much more on new roads rather than on new public transport, new active transport, and new rail, which would actually give people and businesses the option to use something different.