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2005 Experimentation/Interpretation Letters

Archives:



December 2005
Date Item
12/22/05 Reply to a letter regarding traffic signal displays for permissive left turns on green
12/20/05     Request to experiment with steady and flashing in-roadway lights to enhance the delineation of crosswalk lines for pedestirans
12/15/05     Response to a request for approval to experiment with the flashing yellow arrow display for protected-permissive left-turn movements at a Cheyenne, Wyo. intersection
12/15/05     Response to before and after crash data for two Salem, Ore. intersections with protected-permissive left-turn movements converted from circular green to flashing yellow arrow 
12/15/05     Request to approve the use of the Rawlinson Roadway National Park Service Font for way-finding guide signs on federal highways 
12/15/05 Request to experiment with the flashing yellow arrow display for five protected-permissive left-turn movements at three Portland, Ore. intersections 
12/6/05     Response to a review of information regarding Vehicle Activated Traffic Calming Signs that remind drivers of the speed limit in force
12/6/05     Request for approval for the city of Kennewick, Wash. to participate int he use of Clearview fonts
12/6/05     Request for approval for the Ohio-DOT to participate in the use of Clearview fonts 
12/1/05 Request to experiment with a flashing warning beacon having a rectangular shape 
12/1/05     Response to a request to place yellow retroreflective material on the back of stop signs 
12/1/05     Request for official interpretation of the MUTCD regarding the applicability of the ITE Vehicle Traffic Control Signal Heads specifications

November 2005
Date Item  
11/16/05     Response to a letter following the decision of the New Jersey Appellate Court concerning a violation of a no parking ordinance  
  11/15/05     Request to experiment with RV Friendly Symbol Signs in Michigan  
  11/15/05     Request for formal approval for the Iowa-DOT to participate in the use of Clearview fonts for Positive Contrast Legends on Guide Signs  
  11/15/05     Request to experiment with wayfinding sings in Virginia's "Historic Triangle" area  
  11/15/05     Request to experiment with purple pavement marking "dots" to guide E-Z Pass transponder holders into dedicated lanes at certain Maryland toll booths  
  11/3/05     Response to a request for approval to use Automated Flagger Assistance Devices in all North Carolina jurisdictions.  
11/3/05     Request to expand a previously approved experiment with the flashing yellow arrow for protected-permissive left-turn movements.  
11/3/05     Response to review a closure of New Castle Lane in Oviedo, Fla.  
11/1/05     Response to a request to experiment with the Shared-Use Lane pavement marking (Commissioner Sam Adams)  
11/1/05 Response to a request to experiment with the Shared-Use Lane pavement marking (Congressman Blumenauer)  

October 2005
Date Item
10/21/05 Response to a letter with concerns about Federal restrictions on local decision-making authority regarding traffic signal installations in Nevada.
10/20/05     Request to experiment with "Shared Use Lane" pavement markings at selected locations in Portland, Ore.
10/19/05     Request for official interpretation of Section 4D.15 of the MUTCD.
10/18/05     Request to experiment with the flashing yellow arrow display for protected-permissive left-turn movements at six intersections in Oregon.
10/17/05     Request to experiment with a part-time traffic control signal entrance in Baltimore County, Maryland.
10/17/05 Request to experiment with the flashing yellow arrow display for protected-permissive left-turn movements at 18 intersections in Idaho.
10/17/05     Request to experiment with the Modified High Intensity Activated Crosswalk signals for pedestrians and bicycle crossings at two intersections in Portland, Ore.
10/14/05     Request to experiment with the RV friendly Symbol Sign in Tennessee.
10/14/05     Request for clarification of Section 2A.18 of the MUTCD.
10/05/05 Request for approval to use Automated Flagger Assistance Devices on construction sites in Florida.
10/05/05     Request to extend approved experiment 4-219 with the flashing yellow arrow for protected-permissive left-turn movements at five intersections in Oregon.
10/05/05     Request to approve the use of retroreflective yellow borders on traffic signal backplates at six intersections in Poway, Calif.
10/05/05     Request for formal approval for the Okla.-DOT to participate in the use of Clearview fonts.
10/05/05 Request for permission to experiment with two unique traffic control device features that do not coply with the MUTCD at two signalized intersections in Houston.

September 2005
Date Item
9/30/05 Request to approve the use of Clearview fonts in accordance with FHWA Interim Approval in Maryland.
9/30/05 Request to approve the use of retroreflective yellow borders on traffic signal backplates at a Kansas intersection.
9/30/05 Request to experiment with the flashing yellow arrow display for protected-permissive left-turn movements at four intersections in Tualatin, Ore.
9/30/05 Response to a request for official interpretation of the MUTCD regarding ramp metering signal displays for a two-lane freeway ramp with staggered release.
9/30/05 Request from the city of Bismarck, N.D. to participate in the use of Clearview fonts in accordance with the FHWA Interim Approval.
9/30/05 Request to approve the use of retroreflective yellow borders on traffic signal backplates on a statewide basis in Illinois.
9/29/05 Response to a letter requesting permission to experiment with a roundabout guide sign symbol.
9/29/05 Request to experiment with a roundabout guide sign symbol and receive interim approval for the use of the Clearview font for the lettering on the sign in Eau Claire, Wis.
9/29/05 Request from Ariz.-DOT to participate in the use of Clearview fonts.
9/29/05 Response to a request to experiment with the flashing yellow arrow display for six protected-permissive left-turn movements at three intersections in Washington State.
9/29/05 Request for official interpretation of the MUTCD regarding the recommended placement of accessible pedestrian push buttons for accessible pedestrian signals.
9/22/05 Response to a request by the Ill.-DOT to participate in the use of Clearview fonts in accordance with FHWA Interim Approval.
9/22/05 Response to an e-mail that recommends a variety of changes to Parts 2, 3, 4 and 10 of the MUTCD.
9/19/05 Request to approve the use of AFADs on all highways under the jurisdiction of the Vermont Agency of Transportation.
9/19/05 Request to approve the use of AFADs on all highways owned and maintained in the Commonwealth of Virginia.
9/19/05 Request to approve the use of Automated Flagger Assistance Devices (AFADS) on all highways in the Commonwealth of Pennsylvania.
9/19/05 Response to a letter requesting permission to experiment with the flashing yellow arrow for protected-permissive left-turn movements at four Califiornia intersections..
9/15/05 Request to approve the installation of the Tsunami Symbol Sign in California.
9/15/05 Request to experiment with the RV Friendly Symbol Sign in Florida
9/15/05 Request for interpretation of the MUTCD regarding the use of political jurisdiction logos for the Hudson River Valley National Heritage Area (N.Y.) on highway guide signs..
9/15/05 Request to approve the use of AFADs on all jurisdictions of highways in New York..
9/6/05 Memorandum titled, "MUTCD - Interim Approval for Addition of RV Friendly Symbol for Specific Service Signs (IA-8)"
9/6/05 FHWA memorandum titled, “MUTCD - Interim Approval for
Addition of RV Friendly Symbol to Specific Service Signs (IA-8)”

August 2005
Date Item
8/22/05 Response to a letter requesting permission to install shared lane pavement markings in Colorado Springs, Colo.
8/9/05 Response to a letter requesting approval to use retroreflective yellow borders on traffic signal backplates at nine locations in Colorado.
8/11/05 Request to approve the use of Automated Flagger Assistance Devices on all jurisdictions on highways in Oregon.
8/16/05 Request for interpretation of Part 6 of the MUTCD concerning the Multicade device manufactured by Advance Construction Products, LLC.
8/16/05 Request for permission to expand a previously approved experiment with the flashing yellow arrow for protected-permissive left-turn movements in North Carolina.
8/16/05 Request for approval for the N.Y.-DOT to participate in the use of Clearview fonts in accordance with the FHWA Interim Approval for Use of the Clearview Font for Positive Contrast Legends on Guide Signs, dated Sept. 2.

July 2005
Date Item
7/7/05 Request to approve Automated Flagger Assistance Devices on all state roadways under Wash.-DOT jurisdictions.
7/7/05 Request to approve the use of Automated Flagger Asistance Devices on all highway jurisdictions in Maine.
7/7/05 Request for permission to experiment with the in-roadway flashing lights system.
7/27/05 Response to a letter regarding the use of graphics to identify a university on an Interstate guide sign.
7/27/05 Response to a review of reports to determine the legibility of the NPS Roadway 4 font and the Color Detour I style arrow.
7/27/05 Guidance provided when applying the Yield to Pedestrian signs and the In-Street Pedestrian signs.
7/27/05 Request to use Automated Flagger Assistance Devices on state, county and city jurisdictions in Kansas.
7/28/05 Request to approve the use of retroreflective yellow borders on traffic signal backplates at various locations in Florida.
7/28/05 Response to a suggestion for a new system of colored reflective safety markers on roadway approaches to intersections to indicate safe gaps in traffic for conflicting traffic to cross or enter.
7/28/05 Request to expand an approved experiment with the flashing yellow arrow for protected-permissive left-turn movements at four additional Oregon locations.
7/28/05 Request to expand a previously approved experiment with the flashing yellow arrow for permissive left-turn movements at 25 additional locations in Oakland County (Mich.)

June 2005
Date Item
6/13/05 Approved request to extend experimentation 6-193(E), “Active Work Zone When Flashing Increased Penalties PENNDOT.”
6/13/05 Request to experiment with the flashing yellow arrow display for protected-permissive left-turn movements at four intersections in
Oregon.
6/13/05 Response to a request for permission to expand a previously approved experiment with the flashing yellow arrow for protected-permissive left-turn movements in North Carolina.
6/13/05 Request to experiment with the flashing yellow arrow display for two protected-permissive left-turn movements at an intersection in Oregon.
6/10/05 Request to experiment with the flashing yellow arrow display for two protected-permissive left-turn movements at two intersections in
Washington State.
6/10/05 Response to a proposal that the national standards for traffic signals be changed to require the green light to flash for several seconds before turning yellow.
6/2/05 Request for interpretation of Section 3B.15 of the MUTCD regarding pavement marking letters and numerals.
6/2/05 Response to a query regarding certain traffic signals in Salem, Mass.
6/2/05 Request for interpretation of "Continuous Line Segment Determination".

May 2005
Date Item
5/27/05 Request to experiment with the flashing yellow arrow display for protected-permissive left-turn movements at two intersections in Washington State.
5/27/05 Request to experiment with the flashing yellow arrow display for four existing protected-permissive left-turn movements in Washington State.
5/27/05 Request for approval to use Automated Flagger Assistance Devices in Idaho.
5/25/05 Request for official interpretation of the MUTCD regarding the
orientation of the airport sign when used as a trailblazer sign on the
arterial approaches to an Arizona airport.
5/25/05 Response to a suggestion to include the words “use seatbelts”
on the face of stop signs.
5/25/05 Request to approve an experiment with Red In-Roadway Warning
Lights (Bodan Crossing System) at a railroad grade crossing in Boise, Idaho.
5/25/05 Request to approve the use of retroreflective yellow borders
on traffic signal backplates at 28 intersections in Portland, Ore.
5/16/05 Response to a request to experiment with “Solid Green Bicycle
Lanes to Increase Compliance and Bicycle Safety” in New York City.
5/13/05 Response to a suggestion for new designs of traffic signals
for people with color vision deficiencies.
5/13/05   Response to interim approval for optional use of the Clearview
font for positive contrast legends on guide signs.
5/10/05 Response to a request for formal approval for the Va.-DOT to participate in the use of Clearview fonts in accordance with FHWA interim approval for use of the font for contrast legends on guide signs dated Sept. 2, 2004.
5/10/05 Request for approval to use Automated Flagger Assistance Devices in several Ohio jurisdictions.
5/10/05 Response to a request for approval to use Automated Flagger Assistance Devices on all jurisdictions on highways in Illinois.
5/5/05 Response for clarification of the requirements for general service guide signs for hospitals.
5/4/05 Response to a request to experiment with the flashing yellow arrow for permissive left-turn movements at a Waterford, Mich. intersection.
5/3/05 Response to a request to experiment with the flashing yellow arrow display for protected-permissive left-turn movements at a Cheyenne, Wyo. intersection.

April 2005
Date Item
4/27/05 Request to experiment with two yellow-green colored pavements in school crosswalks in New York City.
4/27/05 Response to a letter regarding driving in a lane designated for two-way left turns.
4/27/05 Request to experiment with the pedestrian flag education and awareness campaign to improve pedestrian safety in crosswalks.
4/27/05 Request to experiment with yellow-green pavement markings for school crosswalks in Orlando, Fla.
4/27/05 Request for official interpretation of the MUTCD regarding the requirements to either remove or cover the traffic signal heads during non-operational periods at certain locations during the Sturgis Annual Motorcycle Rally.
4/27/05 Request to experiment with the flashing yellow arrow for permissive left-turn movements at an intersection in Oregon City, Ore.
4/27/05 Request for the interpretation of Section 3B.17 of the MUTCD regarding the use of retroreflective colored pavement treatments.
4/17/05 Response to arequest to experiment with fishhook-shaped arrows on lane-use control signs and pavement markings for roundabout approaches at six locations in New York State.
4/15/05 Response to a request to review and comment on a suggestion that the color used for the "stop" indication of traffic signals be changed from red to blue.
4/05/05 Response to a letter concerning possible confusion to motorists caused by the colors used in Stop/Slow paddles in work zones.
4/04/05 Request for interpretation of revisions in the 2003 edition of the MUTCD that addresses the safety apparel required for student patrols
4/04/05 Request for approval to use the AFAD on all jurisdictions of highways in Minnesota
4/04/05 Request for approval to use the AFAD on state-maintained South Carolina highways
4/04/05 Request for approval to use the AFAD on all jurisdictions of highways in Texas
4/01/05 Response to a request to approve the use of the AFAD on state-maintained Missouri highways

March 2005
Date Item
3/28/05 Response to a letter regarding an "LED Signal Bar" invention.
3/23/05 Response to inquiry regarding the placement of flags, banners, etc. along highways in Atkinson, Neb.
3/19/05 Response to a request to approve the use of the Stop/Slow Automated Flagger Assistance Device (AFAD) on state-maintained Missouri highways
3/17/05 Response to a proposal for four alternative designs for existing signs in the MUTCD and the Standard Highway Signs Book
3/9/05 Request for an experiment with the flashing yellow arrow for protected-permissive left-turn movements at four intersections in Kennewick, Wash.

February 2005
Date Item
2/25/05 Request for permission to experiment with the flashing yellow arrow display for a total of four protected-permissive left-turn movements in El Cajon, Calif.
2/25/05 Request for assistance and clarification of requirements for supplemental signs
2/24/05 Response to a recommended change to the MUTCD Parts 1,2,4,7 and 9
2/17/05 2005 Response to a letter that addresses a question regarding the "DriverÂ’s Alert Sign"
2/17/05 Response to a letter regarding experimentation request 2-496 - DriverÂ’s Alert Sign.
2/11/05 Request to experiment with additional pedestrian traffic control devices in Florida
2/11/05 Request to experiment with the flashing yellow arrow display at four protected-permissive left-turn movements in Irving, Texas
2/11/05 Request for a time extension for approved experimentation 6-197(E) - New Vertical Panel and Drum Wraps
2/09/05 Response to a request for official interpretation of the MUTCD regarding traffic control devices and approved regulatory devices.
2/09/05 Request to experiment with the flashing yellow arrow display for a total of
10 protected-permissive left-turn movements at three California intersections.
2/07/05 Request to expand participation in the NCHRP 3-54 research project and experiment with the flashing yellow arrow for protected-permissive left-turn movements at three intersections in Oregon.
2/03/05 Request to interpret the use and design of merging tapers for lane closures on multi-lane non-access highways in Florida
2/03/05 Response to a request to experiment with a new symbol warning sign for heavy weaving movements.

January 2005
Date Item
1/28/05 Follow-up to a reply regarding the approval status of an automated flagger assistance device.
1/28/05 FHWA memorandum (dated Jan. 28) titled, “MUTCD - Revised Interim Approval for the Use of Automated Flagger Assistance Devices in Temporary Traffic Control Areas (IA-4R)”.
1/27/05 Request to experiment with the flashing yellow arrow for permissive left-turn movements at an Oregon intersection.
1/12/05 Request for interpretation of Part 3 of the MUTCD regarding the use of LEDÂ’s as raised pavement markings.
1/21/05 Request for official interpretation of the MUTCD regarding the use of a red arrow signal indicator in a five-section signal face for variable mode left turns.
1/13/05 Response to a letter requesting information regarding the approval status of an automated flagging device manufactured by First Call Flagging.
1/12/05 Request for approval to experiment with green-colored bike lanes at selected locations in Chicago
1/12/05 Request for interpretation of Section 3B.17 of the MUTCD regarding the use of warning signs in conjunction with pedestrian crossings at non-intersection locations
1/12/05 Reply to concerns about the use of marked turning lanes by vehicles turning into secondary roads or places of business

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