It is possible to measure the operating characteristics of buses
by direct, experimental measurement, but this approach is difficult
and expensive. Simulation models offer preferable means of
evaluating buses for civic operation, especially in design stages;
the paper studies how different aspects of operation can be
initially determined for incorporation into a model suitable for
computer processing.
A simulation model must include mechanical, vehicle parameters
as well as influences of external factors, such as passenger
loading and length of routes. Particular attention is given the
latter factors; the bus line of Budapest is used as an example of
how bus routes, loading patterns, operational speeds, etc. can be
analyzed. These analyses draw on both empirical data (such as
current bus schedules) and theoretical considerations
(engine-dependent parameters, hypothesized boundary values).
A simplified flow sheet for computer processing is presented.
Measurements show that this approach offers good approximation of
actual operations.