Browsing OU - Oklahoma Transportation Resources / Oklahoma Transportation Library by Author "Ahmed, Samir A."
Now showing items 1-4 of 4
-
Components of variability in bituminous concrete pavement construction Volume I - Summary of current state practices (FHWA-OK-92-07) 2179
Ahmed, Samir A. (1992-6)The Oklahoma Department of Transportation (ODOT) turned to quality assurance specifications in 1989 after several years of careful study and consideration. The objective of phase-I of this research project was to evaluate ... -
Components of variability in bituminous concrete pavement construction Volume II - Field and laboratory evaluation (FHWA-OK-92-07) 2179
Ahmed, Samir A. (1992-6)The objectives of phase-II of the project were: 1) to detennine the components of the total variability in the measured quality attributes of acceptable bituminous concrete pavement construction in Oklahoma, 2) to assess ... -
Evaluation of retroflective sheetings for use on roadway traffic signs (FHWA-OK-95-02) 2193
Ahmed, Samir A. (1994-9)The primary objectives of this research were to evaluate the ODOT's policy on use of retroreflective sheeting products, and to identify any necessary changes to this policy based on driver visibility needs, durability of ... -
Evaluation of retroreflective sheetings for use on traffic control devices at construction work sites (FHWA-OK-91-06) 2177
Ahmed, Samir A. (1991-6)The overall objective of this project was to evaluate the relative adequacy of the engineering grade, super-engineering grade, and high-intensity grade sheetings when used on traffic control devices at construction work ...