In other words, the trend under the proposals will be for more aircraft to use the P-RNAV (Precision Radar Navigation) routes as they come in to land, thereby concentrating the aircraft along the red route, whereas they are manually routed in across the shaded area by the ATC at the moment.
Yes but the P-RNAV will never had a steady flow of aircraft all on the same heading and hight particulally given the frequency of flights. Planes willl be bobbing all over the sky and the champers swilling passengers will be up in arms.