While commercial trucks entering Manhattan will be charged depending on the truck size and time of day, there are workarounds.

Experts warn it's too early to tell what impact the tolls are having on Manhattan's notorious gridlock, but the view from the streets shows signs the program could be working.

With congestion pricing now in effect in New York City, many commuters may be asking how do the new tolls work?Most already know about the $9 toll to enter Manhattan at or below 60th Street, in what's called the Congestion Relief Zone,