Last week city council members approved Bill 11, which prohibits all commercial activity at Kailua Beach Park.
Since it took effect, many tour buses are stopping at other places in Kailua to let visitors off near the beach.
"In my neighborhood in particular we've noticed an substantial increase in tour bus activity around the Kailua Beach shopping center," said resident Bill Hayes.
Hayes says he is concerned about the increase in traffic and noise as well as safety with the influx of buses and vans.
"We are concerned about the health effects of diesel exhaust and the overall safety of the neighborhood," said Hayes. "We wonder if it is wise to increase density in this small residential area."
Some other residents say the beach center parking lot is too small to accommodate such large tour buses.
"They have a limited amount of parking and stuff like that so I don't think the tour buses should be there," said Kailua resident Douglas Balles.
Kaneohe Ranch, which owns the Kailua Beach Center, says "We are actively working on the issue and are trying to get a handle on the situation. We are trying to understand the problem first."
A spokesperson with the company says they hired extra security to figure out who is going in and out of the parking lot. With regards to the concerns about exhaust, Kaneohe Ranch says it will also ask those who are allowed to use their lot to turn off their engines.