the influx of new services is because it was previously
inadquately served in terms of number of trunk services.
with almost 20,000 HDB households and another 10,000 private
housing households now living in bishan new town, at least 9 trunk
bus services from the interchange are required. however, there was
only services 13, 53, 54, 55, 56, 88 and 156 available then. hence,
it was agreed upon that more services need to be introduced in
bishan.
