Former Hawaii Gov. Ben Cayetano is planning to reveal an alternate solution to a $5 billion rail line to ease traffic on Oahu.

The mayoral candidate planned an 11:15 a.m. news conference today at a car dealership near Honolulu’s airport to share his plans.

The campaign has become a referendum on the plan, which has split voters and drawn passion from many on both sides of the issue.

Cayetano faces former Acting Mayor Kirk Caldwell in the Nov. 6 election. Incumbent Mayor Peter Carlisle was ousted in the August primary.

Cayetano entered the race to oppose the rail’s construction.