What is the primary operational objective of a Standard Instrument Departure (SID) route?

1. To provide a safe transition from the take-off phase to the en-route phase, while ensuring obstacle clearance and noise abatement.
2. To separate VFR traffic from arriving IFR traffic in uncontrolled airspace.
3. To allow the aircraft to land automatically under Cat III meteorological conditions.
4. To permit aircraft to fly at high speed below 10,000 feet in terminal areas.