 The internal roads linking different parts of the city are mostly federal roads constructed and maintained by Malaysian Public Works Department . There are five major highways linking the Johor Bahru Central Business District to outlying suburbs : Tebrau Highway and Johor Bahru Eastern Dispersal Link Expressway in the northeast , Skudai Highway in the northwest , Iskandar Coastal Highway in the west and Johor Bahru East Coast Highway in the east . Pasir Gudang Highway and the connecting Johor Bahru Parkway cross Tebrau Highway and Skudai Highway , which serve as the middle ring road of the metropolitan area . The Johor Bahru Inner Ring Road , which connects with the Sultan Iskandar customs complex , aids in controlling the traffic in and around the central business district . Access to the national expressway is provided through the North @-@ South Expressway and Senai @-@ <unk> Expressway . The Johor @-@ Singapore Causeway links the city to Woodlands , Singapore with a six @-@ lane road and a railway line terminating at the Southern Integrated Gateway . The Malaysia @-@ Singapore Second Link , located west of the metropolitan area , was constructed in 1997 to alleviate congestion on the Causeway . It is linked directly to the Second Link Expressway . Further expansion of other major highways in the city were currently in the process to improve the city road connection . 
