Authorities are warning drivers about a number of lane closures this week for the Honolulu rail transit project.  You should expect traffic delays along the 20-mile route from East Kapolei to Ala Moana Center. In Ewa, Farrington Highway between Kualakai Parkway and Old Fort Weaver Road is closed in both directions until April. In Pearl City, there will be overnight lane closures along Kamehameha Highway between Waimano Home Road and Kuala Street today through Friday. In Aiea, lane closures will be along Kamehameha Highway between Hekaha and Kanuku.