House of Assembly Fifty-Fifth Parliament, First Session (55-1) 55 1 Parliament of South Australia House of Assembly published Estimates Replies Heysen Tunnels Heysen Tunnels The Hon. D.R. CREGAN House of Assembly Kavel Heysen Tunnels In reply to the Hon. D.R. CREGAN (Kavel) ((17 June 2022).). (Estimates Committee A) The Hon. A. KOUTSANTONIS House of Assembly West Torrens Minister for Infrastructure and Transport Minister for Energy and Mining Heysen Tunnels The Hon. A. KOUTSANTONIS (West Torrens—Minister for Infrastructure and Transport, Minister for Energy and Mining): The project scope includes: upgrades to the tunnel lighting system to a newly designed LED configuration; installation of a new automated fire suppression system; upgrades to the tunnel ventilation system; repairs to the tunnel lining and installation of monitoring equipment; upgrades to the ITS equipment including thermal incident detection systems, new and replacement closed circuit television (CCTV), electronic variable speed and messaging signage and over height vehicle detection; upgrades to the traffic management system to restrict access to the tunnels in the event of an emergency incident; and upgrades to the emergency communication systems, including public address, radio rebroadcast, in-tunnel signage and help phones to improve safety and network reliability.