All possible fiscal and traffic management measures are being explored to better distribute cross-harbour traffic,  the Environment, Transport & Works Bureau says.

Eastern tunnel tolls for cars and taxis will rise $10 to $25 from May 1. Corresponding increases will also be implemented for other vehicles. However, the tunnel company has agreed to defer increases for empty taxis until July 1, and those for minibuses to October 1.

The bureau said today it is very concerned with the impact of the toll increase on cross-harbour traffic and is studying the issue and noting public views.

The bureau will consider the likely financial implications and the need to preserve the value of public assets. It will keep an open mind, listen to public views and maintain dialogue with the tunnel franchisees.