A full pdf icon Strategic Environmental Assessment (SEA) [2Mb] completed in June 2017 was commissioned as part of the masterplanning exercise to promote sustainable development in accordance with Article 1 of the European Directive 2001/42/EC.

In conclusion, the SEA finds that the implementation scored better than the 'no development' scenario including positive impacts to air quality, largely as a result of reducing the amount of traffic that passes through the gateway area.