[PDF][PDF] Critique of rail-highway grade crossing effectiveness ratios and resource allocation procedures

V Berg - Transportation Research Record, 1986 - onlinepubs.trb.org
ABSTRACT A significant portion of recent research on rail-highway grade crossings has
focused on the development of effectiveness ratios for various improvement actions and the
incorporation of accident history into accident prediction and resource allocation
procedures. Data are presented to demonstrate that these procedures can introduce
significant bias and lead to a misallocation of resources. A preferred procedure is to use a
modeling approach to estimate expected accident reductions and to ignore the adjustment …

CRITIQUE OF RAIL-HIGHWAY GRADE CROSSING EFFECTIVENESS RATIOS AND RESOURCE ALLOCATION PROCEDURES (DISCUSSION AND CLOSURE)

WD Berg - 1986 - trid.trb.org
A significant portion of recent research on rail-highway grade crossings has focused on the
development of effectiveness ratios for various improvement actions and the incorporation of
accident history into accident prediction and resource allocation procedures. Data are
presented to demonstrate that these procedures can introduce significant bias and lead to a
misallocation of resources. A preferred procedure is to use a modeling approach to estimate
expected accident reductions and to ignore the adjustment of predicted accident rate based …