own custom and immigration complex in Johor Bahru for this purpose. Old Immigration and Custom complex The old Custom, Immigration and Quarantine (CIQ) complex was later established right on the Johor end of the Causeway, just before the Johor Bahru town centre. Originally it is just a simple two-storey building with lanes for pedestrian, buses, cars and lorries, which were rather limited considering the traffic back then. In the 1980s, the CIQ was later rebuilt and the lanes were expanded not only to accommodate increasing traffic between both sides by introducing more lanes and facilities for motorists and pedestrian, but also to accommodate upgrades of the main route to the Causeway, Jalan Tun Abdul Razak, which later became part of Skudai Highway. While the original plan to make Skudai Highway part of North-South Expressway was scrapped due to Johor Bahru's town developments restricting the road upgrades, a toll plaza was introduced on the CIQ complex and started charging motorists that passed through the Causeway, in or out. Improvements and additions were introduced further as number of crossers grow, however pressing need for a better immigration complex to match with Singapore's Woodlands Checkpoint and checkpoints in Second Link Expressway give birth to a new integrated gateway complex proposal later on. Southern Integrated Gateway and new complex In 2002, accommodating to growing need for a better, smoother border crossing condition, a plan named Southern Integrated Gateway is proposed to combine new CIQ complex, new bus and train stations as well as new bridge to replace Malaysian side of Causeway, which is deemed irrelevant of its current state. The plan is to move the CIQ to Bukit Chagar, where later it would be connected to Tanjung Puteri bridge (the new Causeway replacement bridge) as well as flyovers from a new highway (Johor Bahru Eastern Dispersal Link Expressway) and other roads nearby elevated. It also will be connected to a new train station, Johor Bahru Sentral station via a footbridge. More clearance lanes are also proposed in this building as well as new and bigger clearance hall for pedestrian and public bus commuters. Both clearance areas are covered. All plans were later passed by the Federal Government of Malaysia, and preliminary work begin in 2003. However, despite some groundwork already ongoing, the Tanjung Puteri bridge plan was cancelled by the federal government, now under Abdullah Ahmad Badawi as Prime Minister, citing costs and diplomatic