Western Australia Route Review - Route Structure Strategies

1. Static Route Structure
   
   Establish inbound and outbound routes that remain fixed regardless of runway in use at Perth. This will enable consistent flight planning and tracking.
   
   
   
2. Route crossovers
   
   Enable route crossovers close to the field or in the cruise phase of flight whilst making maximum use of the limited 100 deg arc of Class C airspace to the east of Perth. Utilise three inbound streams and two outbound corridors with tracks merging/diverging at around 90nm Perth. SID/STAR package to resolve crossovers close to the aerodrome.
   
   
   
3. Integrated SID/STAR package
   
   Develop an integrated SID/STAR package that provides tracking and VNAV requirements between the threshold and the route.
   
   Inbound streams to track to Gates at around 40nm Perth where STARs commence. VNAV requirements on STARs to provide for constant descent approaches where safety permits.
   
   Outbound corridors with segregated Prop/Jet SIDs to enhance the safety management of highly varied climb/speed profiles during the departure phase. The need to vector off track in faster following traffic scenarios should be reduced.
   
   
   
4. Flow to Gate
   
   Introduce “Flow to Gate” methodology with ATC and Pilots collaborating to get aircraft to gates at a predetermined time to achieve the sequenced landing time. Enable absorption of delays in cruise phase of flight where possible and safer, more efficient traffic management in the terminal area.
   
   
   

   Inbound sequenced streams
   STAR commencement at a FLOW GATE
   Outbound corridors

Figure 1