This is what the street looks like at 9:30AM. Massive excess of road capacity which leads to speeding, combined with poor conditions for pedestrians and cyclists.
A buffered bike lane, which is a standard in NYC and Philadelphia now, would make the street safer for all road users by narrowing it and reducing speed.
This is a very popular bike route and with an actual lane, bike use would triple overnight (based on experiences of other cities that do this). This would free up more parking for local businesses to thrive and hire more staff.