There is quite a lot to report on, so we will split it into a few posts.
The above picture is an artist’s impression of how the Expressway overbridge will look at Te Moana Road looking east towards the hills. The northbound on-ramp starts on the left while the northbound off-ramp comes out on the right.
This map shows the interchange from above, the top of the map is the West (beach) side of it and the bottom is the East (hills) side of it. South is on the left and North is on the right. Not so visible, but on the map is a cycleway planned for the east side of the southbound on and off-ramps. This will cross Te Moana Road by the southbound on and off-ramps.
This map had vehicles per day estimates post-Expressway completion as post-it stickers, some of these figures are:
Heperi Street: 500 vehicles per day
Tutere Street: 1500
Ono Street: 600
Te Moana Road (west end) 5300
Te Moana Road (between Rauparaha and Lavina) 6000
Te Moana Road interchange: 10,000
Ngarara Farms (the Maypole company subdivisions) 1500
Park Avenue: 4000
Ngaio Road: 3000
Te Moana Road at SH1: 5000 (after the Expressway opens)
It seems officials think the Expressway will only take about half the traffic that goes over the present SH1. It will need to be maintained to its present standard after the Expressway opens, as it is supposed to provide an alternative if the need arises (as in a major accident or incident).