https://en.wikipedia.org/wiki/SeaBus
The 1.75-nautical-mile (3.24 km) crossing takes 10 to 12 minutes in each direction with a cruising speed of 11.5 knots (21.3 km/h), with a 3 to 5 minute turnaround and, therefore, operates on a 15-minute turn-around schedule.
https://en.wikipedia.org/wiki/SeaBus#Service
By now, the SeaBus shouldn't just be every 15 minutes, it should be every 7.5 minutes. 8 trips per hour, each way would be quite an improvement.
Unfortunately, there still seems to be no plan to have a bus tunnel and an LRT tunnel near the LGB.
