I should stop and record or, at least, consider the objects shed on the roadway - intentional and otherwise. In the intentional bucket any number of: beer cans and bottles - especially 40 oz containers, especially in groups hard seltzers fast food bags broken glass bits of cars cigarette butts I saw a perfectly good onion rolling down the road once without a farmer's market in sight. I wonder if someone is still looking for it.
A four year trial is underway to measure use of The Richmond-San Rafael Bridge Bike/Pedestrian Path against the impact on vehicular traffic across bridge. Collecting notes on my weekly trek over and back