Physical Traffic Calming: The Process By: Wade M ontgomery - - PowerPoint PPT Presentation

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 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