Exhibit A Traffic Control Guidelines.pdf

Purpose

• This guide is intended to provide an abbreviated reference document with specific examples of common situations encountered when performing work on street trees located in the public right-of-way. This document is intended for City of Portland staff and our contracted work teams.

• It summarizes portions of the ODOT Traffic control Handbook of Oregon but is not intended to replace or supersede the State law or City code that regulates traffic control requirements. It is the responsibility of City staff and City Contractors to know and follow all applicable laws and obtain all required permits.

Referenced Materials and Online Resources

• ODOT Temporary Traffic Control Handbook http://www.oregon.gov/ODOT/HWY/TRAFFIC-ROADWAY/docs/pdf/2011_OTTCH.pdf

• Link to Portland Bureau of Transportation “Standard Traffic Control Plans” http://www.portlandoregon.gov/transportation/article/226522

• Link to City of Portland Bureau of Environmental Services, Typical Traffic Control Plans

(TCP) http://www.portlandoregon.gov/bes/article/527092

When are a permit and / or Traffic Control Plan required?

• If your work involves a travel lane street or sidewalk closure then you are required to submit a Traffic Control Plan and or obtain a permit. (TCP).

• Triggers include blocking a bike lane, reducing the adjacent travel lane to less than 10 ft wide and forcing that lane into the adjacent lane or over the center line.

• The Permit Center phone number is 503.823.7002, they can help assess when a permit and/or TCP is required. The application web site is, http://www.portlandoregon.gov/transportation/article/481149

Worker Safety Apparel All workers within the right of way who are exposed to traffic or work vehicles shall wear high visibility safety apparel that is labeled as ANSI/ISEA Class 2 or 3 risk exposure. Hardhats are also required for active construction sites.

EXHIBIT A

Temporary Traffic Control Guidelines http://www.oregon.gov/ODOT/HWY/TRAFFIC-ROADWAY/docs/pdf/2011_OTTCH.pdf http://www.portlandoregon.gov/transportation/article/226522 http://www.portlandoregon.gov/bes/article/527092 http://www.portlandoregon.gov/transportation/article/481149

Minimum Equipment Checklist The following list of equipment should cover the bulk of the examples provided in this document.

All temporary traffic control devices, (TDC’s) used shall be in compliance with the ODOT Temporary Traffic Control Handbook and the Federal guide the Manual on Uniform Traffic Control Devices (MUTCD).

Signs

• 2 each “Sidewalk Closed” signs, black on white MUTCD r9-9 30”x15” for temporary sidewalk closures.

• 2 each “Pedestrian Detour” black on orange MUTCD M4-9B 30”x24” with a double arrow, a symbol can indicate the pedestrian.

• 2 each diamond shaped 3x 3 ft advance warning signs with standard black legends, lettering and borders on an orange background.,

• “Road Work Ahead” or “Shoulder Work Ahead” and “Bikes In Roadway” should be adequate for most of the examples detailed in this document. Optional signs include “Road Narrows”.

• Rigid or flexible “roll up” signs are permitted. All signs for night work need to be “retroreflective” (a highly reflective material designed to directly reflect light back to the source of that light).

• Signs may be supported on portable sign support stands, attached to an approved barricade or mounted on the vehicle or a separate vehicle that is positioned ahead of the work zone.

• Signs supported by a portable stand need to have 2 florescent orange flags at least 16” square mounted on top of each sign, all sign need to be at least 12”above the street surface.

• Symbol signs using an image to convey the message are preferred in place of a text sign.

Barricades

• 2 each for type III barricades - use to attach the “Sidewalk Closed” and “Pedestrian Detour” signs.

• With alternate orange and white stripes sloping downward in the direction road users are directed to pass. Minimum length is 24”.

Cones

• 12 each cones will be adequate for lower speed applications.

• 18” tall traffic safety cones, preferably with 2 retro reflective bands. (For use during daylight hours on roads with a 45mph or lower speed limit).

Stop / Slow Paddle

• 18” x 18” octagonal shaped retroreflective MUTCD approved paddle, use for very brief lane closures, such as backing a truck out into the roadway.

Lights and Lighted Signs Warning Lights (Flasher & Steady-Burn)

• Flashing warning lights are optional on vehicles positioned behind retro reflective channelization devices such as cones, tubes and drums or positioned more than 15 ft from the travel lane.

• Always use your emergency flashers, it’s a simple and effective method to increase your visibility.

Arrow Boards

• Minimum size allowed for urban low speed roads = 48”x24”.

• Sequential Mode – Can be used on multi-lane roads to warn of lane closures requiring a merge.

• Caution Mode – acts as a larger emergency type flasher.

• On two-lane, two way roads, arrow boards shall be used in caution mode only.

Setting Up Work Zones

• Determine initial Warning sign placement and type needed, “Road Work Ahead” or

“Shoulder Work Ahead” is typical. (See table 2-4 for spacing requirements.)

• Determine if additional signs are needed, such as “Bikes in Roadway”.

• Set up transition area taper and determine cone spacing, (see tables 2-3 & 2-4).

General Guidelines

Work Zones below 30mph

• The required taper length at 20 mph is 70 ft and at 30 mph it is 150 ft, for a 10 ft lane.

• 5 to 6 ea 18” safety cones would be considered adequate.

• Utilize warning flashers on maintenance vehicle.

• When possible, direct workers to face oncoming traffic.

Work Zones between 30mph and 45mph

• Speeds above 40 mph require much greater taper and initial warning sign placement lengths.

• The required taper length at 35 mph is 205 ft at 45 mph it is 450 ft., for a 10 ft lane.

• Have workers face oncoming traffic if the intended work is close to the traffic lane.

• Consider using a spotter, especially if workers cannot face oncoming traffic.

• Determine an escape route and type of warning signal the spotter will use to alert coworkers.

Specific Examples or Typical Applications

Shoulder Work

• Encroachment must not reduce the adjacent travel lane below 10 ft in usable width.

• If there is a designated bike facility lane, track or observed bike activity then they must be accommodated, see bike example that follows.

• Vehicles should always be parked as far off roadway as possible.

• Use emergency flashers or arrow boards on caution mode, recommended on higher volume/speed roadways.

• Using a spotter may also be considered, especially when sight distances are low and speeds are high.

Bicycles

• Bikes and pedestrians must be accommodated by creating a designated lane that is equal to the blocked path.

• If a designated lane is not practical then provide an alternative route that complies with the Americans with Disabilities Act (ADA) & the MUTCD.

Pedestrian Sidewalk Closures

• Provide an alternative route that complies with the Americans with Disabilities Act

(ADA) & the MUTCD.

• Signs ideally should be attached to a type 3 barricade.

• Close the sidewalk at the nearest intersection on each side of the work area.