HomeMy WebLinkAbout2022-11-15 REVISED ACHD Pedestrian Study ACHD
Mary May, President
Alexis Pickering,Vice-President
�.�h ® Jim D. Hansen,2nd Vice President
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{/01WM ';f Pi0[r-to 54"Clel Kent Goldthorpe,Commissioner
Dave McKinney,Commissioner
November 15, 2022
To (Email): Brad Watson
Alpha Development Group
Bill Parsons and Joseph Dodson
City of Meridian
From: Paige Bankhead, PE
Ada County Highway District
Subject: Bridgetower Apartments — ACHD Addendum regarding Pedestrian
Crossings on McMillan Road
MER21-0140/ H-2022-0047
On August 5th, 2022 ACHD issued the staff report for Bridgetower Apartments, MER21-0140,
H-2022-0047. The applicant requested that ACHD consider allowing them to install an
enhanced pedestrian crossing on McMillan Road at San Vito Way due to concerns from
neighbhors about pedestrians crossing McMillan Road and the additional traffic from the
development. ACHD requested that the applicant submit a pedestrian crossing analysis to
determine if an enhanced pedestrian crossing would be appropriate on McMillan Road at this
location. The applicant submitted this analysis to staff on October 14, 2022.
The analysis provided pedestrian counts from 7:00 am to 7:00 pm on McMillan Road at
Vincenza Way and San Vito Way and 48-hour vehicle counts for McMillan Road collected on
September 27, 2022. A maximum of 38 pedestrians crossed McMillan Road at Vincenza Way
and San Vito Way from 7:00 am to 7:00 pm and there were 9,653 average daily trips on
McMillan Road. The analysis assumed that there would be approximately 7 additional
pedsetrians from the Bridgetower Apartments development that would cross McMillan Road
at these locations based on the location of nearby attractors. Based on the signal warrant
criteria in the Manual on Uniform Traffic Devices (MUTCD), the analysis does not recommend
that a full signal be installed at Vincenza Way or San Vito Way on McMillan Road since there
are less than 75 pedestrians crossing the major street during four different hours of the day.
In addition, a signal at one of these locations does not meet District Policy, which requires that
signalized intersections on minor arterial roads be spaced a minimum of/2 of a mile from any
other signalized intersection.
The analysis also does not recommend a marked crosswalk with Pedestrian Hybrid Beacon
(PHB) at this location since there are less than 20 pedestrians crossing the major road during
the peak hour based on criteria from MUTCD Section 4F. However, staff believes that it is
reasonable to expect 20 pedestrians crossing McMillan Road at San Vito Way or Vincenza
Way in the future during the AM peak hour based on the existing count of 14 pedestrians
crossing McMillan Road at these intersections between 7:00 am and 8:00 am, which is during
the AM peak hour for McMillan Road, combined with the pedestrians from future developments
in this area. Given these factors, the posted speed limit of 40 mph and the volume of traffic on
Ada County Highway District•3775 Adams Street•Garden City,ID•83714• PH 2O8-387-6100• FX 345-7650•www.achdidaho.org
McMillan Road, ACHD would allow a marked crosswalk with a PHB to be installed on McMillan
Road at San Vito Way. ACHD does not recommend that a rapid rectangular flashing beacon
(RRFB)with a median refuge be installed due to the need to accomodate left turns at San Vito
Way, the lack of right-of-way on McMillan Road, the presence of the canal between San Vito
Way and Vincenza Way and the expected future development and traffic volume increases in
the area.
If the City of Meridian requires, or the applicant proposes, to install a marked crosswalk with a
PHB on McMillan Road at San Vito Way, then the applicant should be required to coordinate
the design and approval with Development Review and Traffic Services. The applicant would
need to obtain plan approval and enter into a signal agreement with ACHD. The applicant is
responsible for all costs associated with the hardware, design and installation of the PHB. The
following items must be in place prior to the construction of the PHB crossing:
• Signal Agreement
• Full design and approved plans for the intersection
Ada County Highway District•3775 Adams Street•Garden City,ID•83714•PH 2O8-387-6100•FX 345-7650•www.achdidaho.org