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Originally Posted by NickN
The airspace around London especially looks like suicide!
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In many UK airports the all SID height requirements are provided on the chart negating the requirement for clearance delivery to provide the initial altitude.
But a clearance by London Control to climb to an altitude above that specified in the chart removes the 'not above' height requirements on the chart
That said numerous Gatwick, Heathrow, Stansted, Luton and London City SID and STARs cross and many meet at certain waypoints. Vertical separation is key.
Northbound out of Gatwick yesterday we levelled off at 6 intermediate altitudes.
Brookmans Park Departure is a typical one for QF and shows the altitudes
http://www.nats-uk.ead-it.com/aip/cu...GLL_6-3_en.pdf
And this one from London City that slides under many crossing paths and all radial/DME based rather than waypoint based
http://www.nats-uk.ead-it.com/aip/cu...GLC_6-1_en.pdf
Matt