Metro Tunnel
The Metro Tunnel (sometimes also known as the Melbourne Metro Rail Project or the Metro Rail Capacity Project) is a metropolitan rail infrastructure project currently under construction in Melbourne, Australia. It includes the construction of twin 9-kilometre rail tunnels between South Kensington station (north west of the Melbourne City Centre) and South Yarra (in the south east) with five new underground stations. The southern portal for the tunnel is to be located to the south of South Yarra station. As a result, the tunnel will connect the Pakenham and Cranbourne lines with the Sunbury line, and allow these lines to bypass Flinders Street station and the City Loop while still stopping in the Melbourne central business district.
Malta–Gozo tunnel
On 11 December 2018, the Ministry for Transport confirmed that the Malta–Gozo tunnel project plans are expected to be published within May or June 2019. The Ministry stated that “It is intended that the tunnel will have two lanes, one in each direction, width of 3.25m to 3.50m, a central buffer area in between with a width of approx. 1.00m, and a 1.00m wide shoulder on both sides of the carriageway.” The Ministry also added that the tunnel structure itself will be constructed with concrete segments and include infrastructural systems for ventilation, illumination, water drainage and pumping. Ian Borg said the tender for the design, building, maintenance, and operation of the tunnel would be published some time in 2019.