Launches from near the equator in an easterly direction are preferred, as they allow maximum use of the Earth's rotational speed, and a good orientation for arriving at a geostationary orbit. The rotational boost increases the amount of mass that can be lifted to a given orbit with a given amount of fuel. For polar or Molniya orbits, these aspects do not apply. For safety, a launch from a location where the rocket range extends over water or deserted land is important.
It is believed that future hypersonic aircraft will require a very long runway rather than a vertical launch pad. Such hypothetical spaceports will present unique challenges in noise abatement, zoning, and passenger access, with as much as a 5 mile wide corridor surrounding a 30 mile long runway. A dedicated mass transit system from the nearest public access point to the aircraft boarding area will be required.citation needed
