Why did Greyhound discontinue its airport service? Were any bus companies allowed to offer bids? Did Greyhound get taxpayer money for it airport service?

Shuttle busses and light rails [[dreaming) are a great way to avoid the parking, congestion and drop off problems at airports. If reservations are required, I suggest that a route beginning in the far north suburbs and another beginning somewhere in the far eastern suburbs be staggered to pick up passengers in downtown Detroit. This would increase the frequency of busses leaving downtown Detroit and be a convenience for some far flung suburbanites.