That is a solved problem. The only reason you can’t bring your bike on the bus/train is because of a policy that prevents your local transit system from investing in the necessary equipment. Why are they enacting this policy I don’t know. But I think it has to do with the larger problem of city transportation policies that generally cater only to private car users at the expense of every other forms of transportation.

So perhaps you should be angry at your local policy makers from preventing you from being able to bike part of your commute.