Works started in 1985. My area (Neighbourhood 9 / streets 91,
92, 93) was built first. The original entrance to NTI was via Upp
Jurong Rd. The road was closed to make way for the housing estate
and a new entrance was made via Jln Bahar. Sv. 174 was amended
accordingly. The entrance archway was preserved and it can still be
seen today. 2 years later, the first block of flats were completed
and by 1988 (when I moved there) many units were already
occupied.
Now, regarding the NTI terminal where 174 used to end. The original
terminal was located at the end of Nanyang Ave. Now here's the
confusing part. In 1984, Nanyang Ave starts from Upp Jurong Rd. In
1988, it starts from Jln Bahar! Confused? Here's the explanation. I
compared 2 street directories from the mentioned years. The
original road which led into NTI from Upp Jurong Rd was called
Nanyang Ave and it culminated in a dead end right after Students
Crescent. This was where the first terminal located. Nanyang Ave
was partially closed due to the Jurong West Extension development.
The remaining section, after Nanyang Cres, was renamed Nanyang Dr
(Students Cres was also renamed Nanyang Dr). The old terminal was
no more. In its place was Nanyang Terrace. A new road was built
from Jln Bahar into NTI. This new road was also named Nanyang Ave!
A new terminal was built near the junction of (the new) Nanyang Ave
and Nanyang Dr.