DESCRIPTION This is a practical how-to document on driveway design and location. It is based on t... more DESCRIPTION This is a practical how-to document on driveway design and location. It is based on the standards of Florida Department of Transportation as well as modern research, and generally accepted professional practice
DESCRIPTION This is a practical guide for all things dealing with restrictive medians. It contain... more DESCRIPTION This is a practical guide for all things dealing with restrictive medians. It contains advice for the placement, spacing and design of median openings. The impacts on safety and pedestrians. A new chapter on roundabouts was added.
This project evaluated the safety and operational impacts of two alternative left-turn treatments... more This project evaluated the safety and operational impacts of two alternative left-turn treatments from driveways/side streets. The two treatments were: (1) Direct left turns (DLT) and, (2) Right turns followed by U-turns (RTUT). Ten sites were selected for field data collection where each site experienced one or both of the left turn alternatives from the driveway or side street. Video cameras were set up on scaffoldings to achieve enough viewing height and all the traffic movements at the selected sites were recorded. These videotapes were later reviewed and data related to direct left turns or right turns followed by U-turn movements were gathered. Using the collected data, operational analysis was conducted using two methods, empirical model development and simulation.
This study compared the safety and operational effects of three driveway left-turn alternatives t... more This study compared the safety and operational effects of three driveway left-turn alternatives that were widely used in Florida and nationally, including direct left-turns from a driveway, right-turns followed by U-turns at a median opening and right-turns followed by U-turns at ...
In Florida, the increased use of restrictive medians and directional median openings has generate... more In Florida, the increased use of restrictive medians and directional median openings has generated many U-turns at signalized intersections. There is no widely accepted procedure for estimating the effects of U-turning vehicles on signalized intersection capacity. In the ...
This project evaluated the safety and operational impacts of two alternative left-turn treatments... more This project evaluated the safety and operational impacts of two alternative left-turn treatments from driveways/side streets. The two treatments were: (1) direct left turns and,
In Florida, the increased use of restrictive medians and directional median openings has generate... more In Florida, the increased use of restrictive medians and directional median openings has generated many U-turns at signalized intersections. There is no widely accepted procedure for estimating the effects of U-turning vehicles on signalized intersection capacity. In the ...
This project evaluated the safety and operational impacts of two alternative left-turn treatments... more This project evaluated the safety and operational impacts of two alternative left-turn treatments from driveways/side streets. The two treatments were: (1) direct left turns and,
This project evaluated the safety and operational impacts of two alternative left-turn treatments... more This project evaluated the safety and operational impacts of two alternative left-turn treatments from driveways/side streets. The two treatments were: (1) Direct left turns (DLT) and, (2) Right turns followed by U-turns (RTUT). Ten sites were selected for field data collection where each site experienced one or both of the left turn alternatives from the driveway or side street. Video cameras were set up on scaffoldings to achieve enough viewing height and all the traffic movements at the selected sites were recorded. These videotapes were later reviewed and data related to direct left turns or right turns followed by U-turn movements were gathered. Using the collected data, operational analysis was conducted using two methods, empirical model development and simulation.
DESCRIPTION This is a practical how-to document on driveway design and location. It is based on t... more DESCRIPTION This is a practical how-to document on driveway design and location. It is based on the standards of Florida Department of Transportation as well as modern research, and generally accepted professional practice
DESCRIPTION This is a practical guide for all things dealing with restrictive medians. It contain... more DESCRIPTION This is a practical guide for all things dealing with restrictive medians. It contains advice for the placement, spacing and design of median openings. The impacts on safety and pedestrians. A new chapter on roundabouts was added.
This project evaluated the safety and operational impacts of two alternative left-turn treatments... more This project evaluated the safety and operational impacts of two alternative left-turn treatments from driveways/side streets. The two treatments were: (1) Direct left turns (DLT) and, (2) Right turns followed by U-turns (RTUT). Ten sites were selected for field data collection where each site experienced one or both of the left turn alternatives from the driveway or side street. Video cameras were set up on scaffoldings to achieve enough viewing height and all the traffic movements at the selected sites were recorded. These videotapes were later reviewed and data related to direct left turns or right turns followed by U-turn movements were gathered. Using the collected data, operational analysis was conducted using two methods, empirical model development and simulation.
This study compared the safety and operational effects of three driveway left-turn alternatives t... more This study compared the safety and operational effects of three driveway left-turn alternatives that were widely used in Florida and nationally, including direct left-turns from a driveway, right-turns followed by U-turns at a median opening and right-turns followed by U-turns at ...
In Florida, the increased use of restrictive medians and directional median openings has generate... more In Florida, the increased use of restrictive medians and directional median openings has generated many U-turns at signalized intersections. There is no widely accepted procedure for estimating the effects of U-turning vehicles on signalized intersection capacity. In the ...
This project evaluated the safety and operational impacts of two alternative left-turn treatments... more This project evaluated the safety and operational impacts of two alternative left-turn treatments from driveways/side streets. The two treatments were: (1) direct left turns and,
In Florida, the increased use of restrictive medians and directional median openings has generate... more In Florida, the increased use of restrictive medians and directional median openings has generated many U-turns at signalized intersections. There is no widely accepted procedure for estimating the effects of U-turning vehicles on signalized intersection capacity. In the ...
This project evaluated the safety and operational impacts of two alternative left-turn treatments... more This project evaluated the safety and operational impacts of two alternative left-turn treatments from driveways/side streets. The two treatments were: (1) direct left turns and,
This project evaluated the safety and operational impacts of two alternative left-turn treatments... more This project evaluated the safety and operational impacts of two alternative left-turn treatments from driveways/side streets. The two treatments were: (1) Direct left turns (DLT) and, (2) Right turns followed by U-turns (RTUT). Ten sites were selected for field data collection where each site experienced one or both of the left turn alternatives from the driveway or side street. Video cameras were set up on scaffoldings to achieve enough viewing height and all the traffic movements at the selected sites were recorded. These videotapes were later reviewed and data related to direct left turns or right turns followed by U-turn movements were gathered. Using the collected data, operational analysis was conducted using two methods, empirical model development and simulation.
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