Supporters of the Westchester car-pool lanes and similar projects say highway capacity must increase or economic growth will be stifled along with mobility.

So public officials are searching for strategies to use existing highway capacity more efficiently.

We weren't going to spend over a billion dollars on this project without involving more highway capacity.

When the traffic demand stays below the highway capacity, the delay time on highway stays zero.

Additional revenue was considered necessary by the board to expand highway capacity and rehabilitate aging infrastructure.

"Providing highway capacity will not in and of itself cause growth to occur if there is not latent demand," he said.

The region still needs more and more highway capacity.

"If you increase highway capacity, your traffic will increase to fill it."

Not expanding highway capacity has also resulted in more single-occupancy vehicles.

The objective of these projects is to improve highway capacity and safety along the corridor.