Physical Traffic Calming: The Process By: Wade M ontgomery October 19, 2016 Public Works Advisory Commission
History • A task force was assigned to develop a traffic management policy in 2007/ 2008. • The traffic management policy deals with access management, street classification, planning, developments and traffic calming. • The policy was approved by City Council on M ay 8, 2008 by Ordinance #5324 • Section 19 deals with traffic calming.
Section 19
Getting Started • To begin the process: – A petition from 10 or more separate households is submitted to the City Engineer • Section 19.8 (A) – Staff Evaluation, Preliminary Data Collection • Section 19.8 (B) Eligibility – The avg. speeds must exceed the posted speed limit or volume must exceed 600 vehicle per day
Continuing The Process • Section 19.8 (C) and (D) – Education and Enforcement phase – After the education and enforcement phase, a re- evaluation of the speeds is done • Section 19.8 (E) Ranking System – If speeds still exceed the posted speed limit then the next step is to rank the project
Ranking System • Section 19.8 (F) Eligibility Criteria – Criteria includes things like crashes, speeding rate, volume, driveway density, etc. – A score of 55 points is required for the location to be eligible for physical traffic calming.
Initial Survey • Section 19.8 (G) Information Gathering – Initial Survey • The City sends out a letter to affected property owners letting them know about the traffic calming petition and process along with a survey • The survey for traffic calming must be supported by 51% of the responding property owners • At least 50% of the property owners must respond to the survey
Preliminary Design • Section 19.8 (H) Preliminary Design – Staff develops options for physical traffic calming for the affected area • Section 19.8 (I) Presentation – A public meeting is held to display the options – Public is encouraged to provide comments
Final Survey • Section 19.8 (J ) Neighborhood Approval – Staff determines the preliminary design of the traffic calming process – A letter, survey, and details of the preliminary design are sent to the affected property owners • A 65% vote in favor of the preliminary design for all ballots issued is needed to continue to the next phase
City Approval • Section 19.8 (K) City Approval – City Council must vote to approve all traffic calming propose • City staff, Police Chief, and Fire Chief to provide input • Section 19.8 (L) Construction – Street Department constructs the approved improvements as time and funding allow* * Almost at $100,000 for the year and would like to contract out in 2017 (1,800 man hours).
Locations of Devices • Little Oaks Drive – speed dip • Ancestry Drive – speed dips • Boardwalk Springs – median island • Water View Lane – speed dip, median islands, bump-outs • Asher Ct. – speed dips • Autumn Grove Drive – speed dips and median island • Brook Hollow Drive – speed dips • Thoreau Blvd – speed dips and median island • Elaine – speed dips, median islands and traffic circle • Countryshire – speed dips, median islands
Locations of Devices • Country Chase Drive- Bump-outs and dips • Country Orchard-dips • Country Stone – dip and media island
Ancestry Drive
Ancestry Drive
Boardw alk Springs
Boardw alk Springs
Elaine
Effectiveness of Signage
Before and After Average Speeds Before / After • Ancestry Drive – 28 mph / 23 mph • Autumn Grove Drive – 29 mph / 23 mph • Brook Hollow Drive – 28 mph / 24 mph • Thoreau Blvd. – 27 mph / 22 mph • Asher Ct. – 30 mph / 22 mph • Elaine – 26 mph / 24 mph
Before and After • Ancestry Drive M arch 2009 (Pre-dips) M arch 2010 (Post-dips) Traffic Volume(AADT) 633 300 Vehicles over 30 (M PH) 446 28 Vehicles over 45 (M PH) 35 0 Average Speed (M PH) 28 23 * 3 Day Study * 5 Day Study
Current Projects • Turtle Creek • Royal Oaks • Paul Renaud Blvd. • Deer Creek • Waterview Lane • St. Gemma
Questions • Any questions? http:/ / www.ofallon.mo.us/ traffic-division
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