To duplicate the capacity of the trains, you&#x27;d need enormous amounts of parking and bridges. Someone crunched the numbers and found you&#x27;d need a parking lot the size of Manhattan and at least two layers deep to accommodate all of the commuters if they drove, as well as 48 additional 8 lane bridges.<p><a href="https:&#x2F;&#x2F;mtayloranalysis.wordpress.com&#x2F;2014&#x2F;12&#x2F;09&#x2F;an-auto-oriented-manhattan&#x2F;" rel="nofollow">https:&#x2F;&#x2F;mtayloranalysis.wordpress.com&#x2F;2014&#x2F;12&#x2F;09&#x2F;an-auto-ori...</a><p>Cars are in many ways less robust than trains.