Runway Exit Design Interactive Model (REDIM)
REDIM is a computer model developed to locate and design high-speed runway exits
at airports. The model uses kinematic equations to characterize the aircraft
landing dynamics and a polynomial-time dynamic programming algorithm to find the
optimal locations of the high-speed exits. The objective of the optimization
algorithm is to minimize the weighted average runway occupancy time (ROT) of an
aircraft mix selected by the user. A database of aircraft characteristics for
four terminal airspace procedure (TERP) categories has been included in the model
to facilitate its use in a large variety of airport environments and conditions.
The database file relieves the user's data-input burden, specially when the
aircraft mix consists of many different types of aircraft. The program is
developed to be used as a design and a planning instrument by engineers. Hence,
considerable effort has been devoted to user interface such as menu system,
interactive data editing, and graphical and tabular outputs.