This study was conducted for the Federal Aviation Administration System Technology Division to assess the impact of optimal turnoff locations in runway occupancy time and ultimately in the assessment of possible runway capacity gains.
Further reductions are possible by converting right angle turnoffs to super-acute angle exits.
While the land use requirements of these turnoffs are high, it might well payoff in runways operated almost exclusively by transport-type aircraft over a 20 year life cycle. Proposed lateral separation distance nomographs between a runway and parallel taxiways were derived for all types of high-speed geometries using fairly conservative aircraft deceleration assumptions on the tangent portion of a turnoff. These nomographs could be used in preliminary airport planning to estimate land use requirements. Chapter 4 of this report addresses this issue in more detail. The airfield observations reported fill an important gap in aviation operations today.