Many factors support metro transit ridership, lack of parking at a place of work is certainly one. Where there is a low ratio of available parking to number of workers there is a workforce highly dependent on metro transit. The opposite exists, as visualized above, where space abounds and parking is available. As the gradient fades from purple to green, overall ridership numbers are visualized, while marker sizes depict a workplace’s total available parking capacity divided by the number of workers to create a normalized ratio