The Kilometre Zero of the Federal Route 52 is located at Bulatan Ledang roundabout in Iskandar Puteri. The Kilometre Zero of Johor State Route J1 is located at Johor Bahru city centre and the milestone is located near the Johor Bahru City Hall main headquarters.
History
it used to be known as the Johor Bahru West Coast Parkway. The 8 km parkway was a part of Federal Route 1 before Skudai Highway was built. However, the importance of Johor Bahru as a trade centre for Singaporeans after the separation of Singapore from Malaysia in 1965 became the major factor of the construction of Skudai Highway. Skudai Highway bypasses the portion which becomes the present-day Johor Bahru West Coast Parkway. As a result, the two-lane Jalan Skudai was recommissioned as Johor State Route 1. The two-lane Jalan Skudai became the main coastal road in Johor Bahru as the main alternative to Skudai Highway. In 1996, the construction of Persiaran Tun Sri Lanang as a separate carriageway for JB West Coast Parkway was completed, as a part of the Johor Bahru Waterfront project. However, the project was abandoned due to very high cost, leaving Persiaran Tun Sri Lanang and Lot 1 as the only 2 structures completed for the project. In 2002, the government of Johor proposed the Danga Bay project, not only to revive the former Lagun Puteri and Pantai Lido, but also to boost the economy of west Johor Bahru. The Danga Bay project included a 4-km upgrade of the two-lane Jalan Skudai as a dual carriageway. The road upgrade was completed by the end of 2003.
New Coastal Highway (Iskandar Puteri–Danga Bay)
Following the establishment of the Iskandar Development Region on 30 July 2006, the New Coastal Highway linking Iskandar Puteri from Danga Bay was announced. These include the six new interchanges along the highway such as Skudai-TAR interchange, Taman Perling diamond interchange, Bukit Indah diamond interchange, Nusajaya North cloverleaf interchange, Legoland Malaysia interchange and the Iskandar Puteri roundabout interchange. Construction began on 2008 and was completed on August 2011. The Johor Bahru West Coast Parkway and the New Coastal Highway has now combined to become Iskandar Coastal Highway.
In 2013, the stretch between Nusajaya and Danga Bay which known as Lebuhraya Sultan Iskandar was gazetted as a Federal Route 52.
The 5.2 km Coastal Highway Southern Link is an extension of the Iskandar Coastal Highway that linking Medini in the northeast to Port of Tanjung Pelepas Highway interchange of the Second Link Expressway in the northwest. The turnkey contractor for the highway project are Sunway Group and SJIC Bina Sdn Bhd, which is a fully owned unit of Iskandar Investment Berhad. Construction began in 2015 and opened on 29 November 2017.
Act as a protocol route from Kota Iskandar to Johor Bahru.
At most sections, the Federal Route 52 and Johor State Route J1 was built under the JKR R5 road standard, allowing maximum speed limit of up to 90 km/h. There are no alternate routes, or sections with motorcycle lanes.
