There are fresh calls for a three-lane motorway going around the city, as well as an improved Girton interchange for a potential million new homes on an east – west route.
The creation of an east – west “expressway that links Cambridge with Milton Keynes and Oxford, is expected to bring additional traffic. An expected one million new homes could spring up in settlements along the route, and measures are being looked at to curb their effect on the roads.
In a report published by the Greater Cambridge Partnership (formerly City Deal), the need for an expanded “smart” motorway around Cambridge is set out, along with reasons for an improved junction at the Girton interchange which would allow more east – west travel.
The report read: “It is clear that the addition of potentially one million homes along the Cambridge – Milton Keynes – Oxford growth corridor has the potential to significantly impact the outcome.
"The work currently underway will test the impact of different housing and employment distribution scenarios along that corridor to establish the case for including upgrades to Girton interchange in RIS2 (Road Investment Strategy 2).”
Improvements include 'smart motorway' and Girton interchange
Making the M11 into a three-lane 'smart motorway' is suggested as a way of improving the link.
The report continues: “Smart motorways are a technology driven approach to maximising the efficiency of the existing motorway network. They increase capacity and relieve congestion by using the hard shoulder for traffic, either permanently or during times of congestion, effectively creating a new lane without traditional road widening.
“In addition, technology allows Highways England to monitor and respond to real-time congestion levels using variable speed limits to smooth traffic flow and reduce congestion caused by stop-start driving. Emergency refuge areas with emergency telephones provide an area of relative safety at regular intervals.”
Cllr lewis Herbert, leader of Cambridge City Council and GCP board member, said: “Our argument, particularly for the east –west route with the expressway is it will put bigger pressure on the need for a good Cambridge junction.
“We definitely need a Girton interchange and will be pressing for improvements. We need to put the pressure on government if we are to succeed with this.”
The plans will be discussed by the GCP assembly next week.
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