DATE: September 30, 2015
TO: Board of Mayor and Aldermen
FROM: Eric Stuckey, City Administrator
David Parker, City Engineer/CIP Executive
Paul Holzen, P.E., Director of Engineering
Carl Baughman, P. E., Traffic/Transportation Engineer
SUBJECT:
title
Discussion on Mack Hatcher Parkway Northbound at Liberty Pike, NO TURN ON RED SIGN
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Purpose
The purpose of this memorandum is to provide a recommendation to the Capital Improvements Committee (CIC) to modify NO TURN ON RED signing for the northbound Mack Hatcher Parkway right turn movement onto Liberty Pike eastbound.
Background
The 2014 widening of Mack Hatcher Parkway kept the dedicated northbound right turn lane, but without the pre-existing NO TURN ON RED sign that had been installed in 2008 as an aid for Jordan Road egress at Liberty Pike. The Royal Oaks neighborhood noted its absence and brought the matter to the attention of the Engineering Department, who obtained TDOT permission to re-install the sign. The sign placement on the new mast arm at the widened intersection has apparently rendered the sign less visible, even though it is properly placed adjacent to the new right turn signal head. The Royal Oaks neighborhood testifies that there seem to be more violations of the sign, and some drivers testify a lack of awareness of the sign. The CIC has floated various concepts for improved regulation here, which are described below in the data and options sections of this memo. In the meantime, the Engineering Department has collected traffic counts that reflect school activity, and has performed crash investigations here since the May 2014 opening of the widened Mack Hatcher Parkway. Engineering also located research investigations on the effect of various NO TURN ON RED treatments on the violation rate that will assist in developing its recommendation.
Data
Engineering-TOC Division collected traffic counts at both the Mack Hatcher and Jordan Road interse...
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