The Honolulu Rail Transit Project is being built in three operating segments:
Segment 1 (East Kapolei to Aloha Stadium)
Includes nine stations: Kualaka‘i (East Kapolei), Keone‘ae (UH-West O‘ahu), Ho‘opili (Honouliuli), Hō‘ae‘ae (West Loch), Pouhala (Waipahu Transit Center), Hālaulani (Leeward Community College), Waiawa (Pearl Highlands), Kalauao (Pearlridge), and Hālawa (Aloha Stadium).
Trial operations was completed in April 2023, including a full Safety and Security Certification process with local, state, and federal agencies.
Segment 1 was then transferred to the City’s Department of Transportation Services (DTS).
Skyline opened to the public on June 30, 2023.
Segment 2 (Joint Base Pearl Harbor-Hickam to Middle Street Transit Center)
Includes four stations: Makalapa (Joint Base Pearl Harbor-Hickam), Lelepaua (Daniel K. Inouye International Airport), Āhua (Lagoon Drive), and Kahauiki (Middle Street Transit Center).
Trial Operations is ongoing and began in July 2025. During this phase, trains must achieve a 98.5% average availability over a 30-day rolling period to meet performance standards.
While testing is underway, all passengers must disembark the train at Hālawa (Aloha Stadium). Trains will not carry passengers into Segment 2 until all safety requirements are met.
HART will transfer assets to DTS on October 1, 2025. DTS will then determine the opening date for passenger service.
Segment 3 (Kalihi to Civic Center)
Includes six stations: Mokauea (Kalihi), Niuhelewai (Honolulu Community College—Kapālama), Kūwili (Iwilei), Hōlau (Chinatown), Kuloloia (Downtown), and Kaʻākaukukui (Civic Center).
Utility relocation work is ongoing to clear the way for columns, guideway, and stations.
Relocations in the Downtown area (Kaʻaʻahi Street to Cooke Street) are nearly complete.
Relocations in the Kalihi area (Middle Street to Kaʻaʻahi Street) are expected to be completed mid-2026.
Guideway shaft construction began in September 2025.
Column construction is expected to begin in the fourth quarter of 2025.
Segment 3 guideway and station construction is anticipated to be completed in late 2030.