The Gateway development will greatly increase road congestion

  10 bus routes:  98 buses an hour, on completion of 
development, crossing eastbound traffic on Loampit Vale at 
three traffic light controlled junctions.
 New Traffic Lights: To allow buses entering the new bus 
station plus extra traffic generated by proposed residential C 
(18 storey, 500 residents) and the new B+Q (188 car parking 
spaces). to cross east bound traffic. More detail
 Existing Traffic Lights: Buses leaving the station will
cause extra delays here.
 New  Traffic Lights:  Relocating the bus station means 
that the extra bus traffic on Loampit Vale will have to negotiate
this new controlled junction twice (inward and outward), 
196 bus crossings an hour. 
 New Traffic Lights: This new controlled junction has 
perhaps the most potential for causing havoc for evening peak 
hour traffic coming into Lewisham along Loampit Vale. 
 More detail
 In order to avoid the chaos on Loampit Vale traffic from 
the swimming pool,  new residential units (A and B ) and the 
Sundermead estate will use this route. We can also expect an 
increase in traffic on the standard rat runs from Loampit Vale to 
Ladywell and Brockley. More detail

 New Traffic Lights: The entrance to the car park for the 
Gateway development and service delivery will be here. Also 
any service traffic wishing to travel south must turn north out 
of the car park before doing a U turn at the new roundabout 
in Lewisham Road. 

In general the transport assessment carried out for this 
new road layout is so flawed that Transport  for London 
have asked for a resubmission. Some major failings are:

- It does not factor in extra traffic generated by residential developments A,B, and C ( 2300 new residents in all ), the new B+Q store, or the new swimming pool (B).

- It does not factor in any general increase in road traffic the area can expect by 2012.

Even without taking into account these factors it estimates that traffic congestion will be worse as a result of the new road layout (Lewisham Gateway Transport Assessment: Section 8.3).

As an illustration of how far off the mark this assessment is, it estimates the current maximum queuing on Loampit Vale back from the roundabout at 180 metres at PM peak. Anyone using the area knows that the true figure is more like 800 meters, with traffic queuing back to Lewisham College, Wickham Road and beyond.