There is no reason to put yourself in peril by trying to ride on the service drive.
There are many low traffic side streets that you can ride safely.
Lincoln is a much better choice . It is a little tricky the first time at the Dequindre 696 crossing. After you have done it once it no problem . East of Dequindre Lincoln changes to Frazho.
Catalpa-Gardenia-Martin(11 1/2 mile) is a good route too. The hiccup with that path is the zigging and zagging that is necessary in the subdivision between John R and Dequindre and cutting through the mall parking lot east of there to connect with Martin.
A lot more commuters are cycling to work now especially after the fuel costs last summer.
Most of the SMART(suburban ) buses now have two place bike carriers. Unfortunately they are usually taken during high use times.