User's Guide to Databases Developed for Evaluating Two-lane Highway Design Consistency

User's Guide to Databases Developed for Evaluating Two-lane Highway Design Consistency

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This users guide documents the information in three databases developed and used in Contract No. DTFH61-95C-00084 qDesign Consistency Evaluation Module for the Interactive Highway Safety Design Model.q The INDIVID database includes the individual vehicle speeds collected at the sites. The type of vehicle (e.g., passenger car, truck, or recreational vehicle) is also included. The HOVESPED database contains information on vehicle speed data for 176 horizontal and/or vertical curves, the preceding tangent, and 12 spiral curves. The following are included in the database: horizontal and vertical alignment data; cross section data; and mean speeds, 85th percentile speeds, standard deviation, skewness, and kurtosis of the speed data. The database contains speed information for passenger vehicles, trucks, and recreational vehicle speeds. The ACC_DEC database contains information on vehicle speeds entering and departing 21 horizontal curves. The three databases are compatible with spreadsheet programs and Statistical Analysis Software.This users guide documents the information in three databases developed and used in Contract No. DTFH61-95C-00084 aquot;Design Consistency Evaluation Module for the Interactive Highway Safety Design Model.


Title:User's Guide to Databases Developed for Evaluating Two-lane Highway Design Consistency
Author: Kay Fitzpatrick, Jon M. Collins, Lily Elefteriadou, Ann Do, Texas Transportation Institute, United States. Federal Highway Administration
Publisher: - 1998
ISBN-13:

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