Augmented reality again. Similar to that projected pedestrian crossing. The system projects a virtual bike lane (using lasers!) on the ground around the cyclists, providing drivers with a recognizable boundary they can easily avoid.
2013-05-11: this is the kind of stuff needing to be shoved down the throats of the many NIMBY assholes around town.

NYC DOT found that protected bikeways had a significant positive impact on local business strength. After the construction of a protected bicycle lane on 9th Avenue, local businesses saw a 49% increase in retail sales.

2016-09-21: I approve

shadowy activists, who seem to have a warehouse of orange cones, have been erecting protected lanes around San Francisco that last for brief periods before they (or someone else) remove them. The group joins others nationwide to push for safe roads with guerrilla actions, including organizations in New York, Boston, and Portland.

2023-03-11: NYPD right of way regulations

1. Marked NYPD vehicles
2. Unmarked NYPD vehicles
3. Vehicles with a Thin Blue Line flag bumper sticker
4. A dumpster with the Punisher logo on it
5. Film crews for Blue Bloods
6. Vehicles whose owner’s cousin used to work for the city (any city is fine)
7. Amazon delivery trucks
8. Pedestrians walking against traffic
9. Any double-parked motorized vehicle
10. Regular film crews

50. Cyclists