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OBJECTIVES To evaluate the relationship between performance-based risk factors and subsequent at-fault motor vehicle collision (MVC) involvement in a cohort of older drivers. DESIGN Prospective cohort study. SETTING Motor Vehicle Administration (MVA) field sites in Maryland. PARTICIPANTS Of the 4,173 older drivers invited to participate in the study,(More)
PREFACE The habitat use information and Habitat Suitability Index (HSI) models presented in this document are an aid for impact assessment and habitat management activities. Literature concerning a species' habitat requirements and preferences is reviewed and then synthesized into subjective HSI models, which are scaled to produce an index between 0(More)
PREFACE The revised model contains significant changes from the previous model (FWVOBS-8V10.71). The major changes include addition and deletion of habitat variables, shapes of individual SI curves, and modification of the intermediate and final aggregation equations. The model user should carefully review this revised model for applicability and probably(More)
The Biological Services Program was established within the U.S. Fis h and Wild life Service to supply scientific information and methodolog ies on key environmental issues that impact fish and wi l dli fe reso urces and their supporting ecosystems. The mission of the program is as follows: • To strengthen the Fish and W i l dl i fe Service i n its role as a(More)
and Wildlife Servici to supply scientific informttion and methodo1ogils on key environmental issuls that impact fish and wildlife resources and their supporting ecosystems. The mission of tht program is as follows: • To strengthln the Fish and Wildlife service in its role as a primlry SO\lrce of ;nforlllltion on national fish and wild-lift resources,(More)
PREFACE The habi tat use i nformat i on and Habi tat Sui tabil ity Index (HSI) models presented in this document are an aid for impact assessment and habitat management activities. Literature concerning a species' habitat requirements and preferences is reviewed and then synthesized into subjective HSI models, which are scaled to produce an index between 0(More)
This is one of the first reports to be published in the new "Biological Report" series. This technical report series, published by the Research and Development branch of the U.S. Fish and Wildlife Service, replaces the "FWS /OBS" series published from 1976 to September 1984. The Biological Report series is designed for the rapid publication of reports with(More)
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