Conversely, cars are expensive, both for people and for cities. State and local governments spend more than$200 billion each yearon the construction, operation, and maintenance of highways and roads. Kimble notes that the average family in car-centric Houston, Texas, spends ne...
Other factors might be to do with future maintenance costs, reliability (LR has covered the “bathtub curve” in the past, of course) and – potentially the big one – reliability of journey times given that such bridges would lift more often than Tower Bridge and would do so at all times...