KALAMAZOO  (WKZO) --    Metro Transit Ridership is growing, and has been for the last six-months. It could be high gas prices, it could be the recovering economy, but it is probably a number of factors that are driving people to mass transit.  In February, ridership shot up 20.6% over the same month last year.  That’s 49-thousand more rides in one month, for their line haul, ADA and Metro Connect services.