MELBOURNE Underground Rail Loop’s Fire and Safety Upgrade (Stage 2) and Intruder Alarm Project integrates fire control, intrusion detection, access control and video surveillance.
The project, which has been taken to tender by Metro Trains Melbourne, will improve the safety of the Melbourne Underground Rail Loop (MURL) stations by upgrading aspects of the emergency management systems and infrastructure.
The Stage 2 works have the following scope:
* Upgrade station sprinkler systems at Melbourne Central Station, Parliament Station and Flagstaff Station.
* Provide a smoke management system at Melbourne Central Station based on mechanical exhaust of smoke through platform ducts located above platforms.
* Provide mechanical smoke management systems at Parliament and Flagstaff Stations based on mechanical exhaust of smoke through the draught relief shafts (no platform ductwork).
* Roll out of the tunnel intruder alarm system (TIAS) which incorporates the following:
– Main Fibre Network Fitted to tunnels, MURL stations, ventilation shafts and substations.
– GE Challenger security system to key access points across the MURL
– Proposed detection system at platform ends.
The minimum level of local content set for this project is 74 per cent for the preconstruction and construction phase of the project as well as maximise the use of locally-milled steel fabricated products where possible.
The City Loop (originally called the Melbourne Underground Rail Loop or MURL) is a mostly-underground, partly surface-level and partly elevated subway and rail system around the central business district of Melbourne, Victoria, Australia.
The loop includes the city's 2 largest (both above-ground) stations: Flinders Street and Southern Cross (formerly Spencer Street); and 3 underground stations: Flagstaff, Melbourne Central (formerly Museum) and Parliament.
Melbourne's 15 radial suburban railway lines feed into the Loop at its north western and south eastern corners. The underground section of the Loop follows La Trobe and Spring Streets along the northern and eastern edges of the CBD's street grid.
The total length of tunnels in the Loop is 12 km (7.5 mi) with 10 km (6.2 mi) of circular tunnels, and 2 km (1.2 mi) of box tunnels. The four tunnels have an average length of 3.74 km (2.32 mi), with a further kilometre of track connecting with surface tracks. Tunnelling of the MURL began in 1972 and the eventual cost of the project was $A500,000,000 when completed in 1978.
This security and safety tender closes on 31-10-2017, with construction commencing on November 2017 and construction to be completed by December 2019.♦