Supplementary Stage 1 Road Safety Audit Designer's Response

M1 Junction 19 Improvement
Stage 1 Road Safety Audit Designer’s Response /
Exceptions Report
Exception
No exception is sought at this stage; although an exception may be sought at the next
stage of design development for reduced visibility should the issue be raised in
subsequent Road Safety Audits.
Problem 2 - Additional vehicles using this route
A426 between M1 J20 and M6 J1
Problem
The proposed junction layout removes the
ability for vehicles to travel from M1
Southbound to M6 Westbound and from
M6 Eastbound to M1 Northbound. Any
vehicles that previously made either of
these movements will now have to use the
A426. The auditor is unsure whether the
capacity of this route and junctions will be
suitable for the additional vehicles.
Recommendation
Provide assessment of impact of scheme
on A426.
Designer’s Response
The Preferred Route has been developed based on traffic forecasting. This identified
that existing demand and forecast flows for the M6 westbound to M1 northbound and M1
southbound to M6 westbound movements are currently and forecast to be very low. The
alternative route for these movements using the strategic road network is the M69 and
the A426.
A comparison of the forecast traffic flows on the A426 in the do-minimum scenario (no
junction improvement) and the do-something scenario (following improvement to the
junction) in both the opening year (2014) and the design year (2029) indicate a small
reduction in traffic along the A426. This is considered to be due to traffic currently
bypassing M1 Junction 19, transferring to the motorway network following removal of the
congestion and delay currently encountered at M1 Junction 19.
Exception
No exception required.
Rev.:1
4 Issued: February 2010