DATE: September 15, 2015
TO: Board of Mayor and Aldermen
FROM: Eric Stuckey, City Administrator
David Parker, City Engineer
Paul Holzen, Director of Engineering
Carl Baughman, Traffic Engineer III
SUBJECT:
title
Discussion to install a NO TURN ON RED for the northbound at Royal Oaks Boulevard right turn movement onto Murfreesboro Road (SR 96 East)
body
Purpose
The purpose of this memorandum is to provide a recommendation to the Capital Improvements Committee (CIC) to install No Turn On Red signing for the northbound Royal Oaks Boulevard right turn movement onto Murfreesboro Road (SR 96 East).
Background
The 2009 widening of Royal Oaks Boulevard and Murfreesboro Road created dual northbound right turn lanes that enter three eastbound through lanes. The dotted guideline installed with that project directs the Royal Oaks curb lane into the Murfreesboro Road curb lane, and the second right turn lane into dual optional middle or inside lanes on Murfreesboro Road. The Engineering Department has received occasional requests from motorists to shift outward this dotted guideline to allow the curb lane the option to enter the middle or outside lanes on Murfreesboro Road. This revision would allow the curb lane vehicles to immediately escape the trap of the outside lane right turn drop located 1100 feet downstream at the southbound I-65 on-ramp. It would also require that the second right turn lane enter the inside eastbound through lane on Murfreesboro Road, which splits into the dedicated left turn lanes for the northbound I-65 ramp just 400 feet downstream from the right turn lane stop line. However, the southbound dual left turns also enter the two inside eastbound through lanes on Murfreesboro Road, thus the discussion has focused on the protection of the right turns and left turns from each other.
Data
Engineering investigations of the right turn crash pattern at the Royal Oaks intersection and through the zone leadin...
Click here for full text