Department for Transport<p>Highways England have been undertaking extensive research into potential air quality solutions for the strategic road network that could reduce levels of NO2. They have explored a wide range of ideas including the effectiveness of different traffic management options, understanding obstacles to greater use of electric vans on the network and different types of barrier design.</p><p> </p><p>Based on all their research, they have robust evidence that a 9.5 metre high barrier can help reduce levels of nitrogen dioxide behind the barrier and have developed a programme to identify potential sites around the network.</p>Hereford and South HerefordshireJesse Norman2018-11-19false2018-11-19T11:01:02.707Z27TransportTransport2018-11-09Motor Vehicles: Exhaust Emissions1House of CommonsTo ask the Secretary of State for Transport, what progress Highways England is making on reducing levels of NO2 on the strategic road network.falseBury NorthJames Frith18979710011