Under proposed guidelines, they will change from yellow to florescent green.
The the Federal Highway Administration published a Notice of Proposed Amendment in the Federal Register containing a proposal for a new edition of the Manual on Uniform Traffic Control Devices.
What does that mean in English? Updates for bike signs and their use. The Bike Commuters Blog from Orlando pulled out some relevant items listed below.
If you'd like to comment on any of these before their approval, Trafficsign.us says you may do so by visiting
www.regulations.gov and searching for "28977" (the regulatory number assigned to the new MUTCD). Then follow the instructions on the webpage. Note: When submitting comments, it's usually a good idea to provide thorough justification for for proposed revisions to the draft MUTCD content, and include references or citations to applicable research or studies as needed. The deadline for comments on this proposed revised MUTCD is Thursday, 31 July 2008.
Section 9B.06 Bicycles May Use Full Lane Sign (R411)
Option:
The Bicycles May Use Full Lane (R411) sign (see Figure 9B2) may be used on roadways where no bicycle lanes or adjacent shoulders usable by bicyclists are present and where travel lanes are too narrow for bicyclists and motor vehicles to operate side by side.
The Bicycles May Use Full Lane sign may be used in locations where it is important to inform road users that bicyclists might occupy the travel lane.
Support:
The Uniform Vehicle Code (UVC) defines a “substandard width lane” as a “lane that is too narrow for a bicycle and a vehicle to travel safely side by side within the same lane.”
Section 9C.07 Shared Lane Marking
Option:
The Shared Lane Marking shown in Figure 9C9 may be used to:
A. Assist bicyclists with lateral positioning in a shared lane with onstreet parallel parking in order to reduce the chance of a bicyclist’s impacting the open door of a parked vehicle,
B. Assist bicyclists with lateral positioning in lanes that are too narrow for a motor vehicle and a bicycle to travel side by side within the same traffic lane,
C. Alert road users of the lateral location bicyclists are likely to occupy within the traveled way,
D. Encourage safe passing of bicyclists by motorists, and
E. Reduce the incidence of wrongway bicycling.
Guidance:
The Shared Lane Marking should not be placed on roadways that have a speed limit above 50 km/h or 35 mph.
Standard:
Shared Lane Markings shall not be used on shoulders or in designated bicycle lanes.
If used in a shared lane with onstreet parallel parking, Shared Lane Markings shall be placed so that the centers of the markings are at least 3.4 m (11 ft) from the face of the curb, or from the edge of the pavement where there is no curb.
Guidance:
If used on a street without onstreet parking that has an outside travel lane that is less than 4.3 m (14 ft) wide, the centers of the Shared Lane Markings should be at least 1.2 m (4 ft) from the face of the curb, or from the edge of the pavement where there is no curb.
If used, the Shared Lane Marking should be placed immediately after an intersection and spaced at intervals not greater than 75 m (250 ft) thereafter.
Section 9B.18 Bicycle Warning and Combined Bicycle/Pedestrian Signs (W111 and W1115)
Support:
The Bicycle Warning (W111) sign (see Figure 9B3) alerts the road user to unexpected entries into the roadway by bicyclists, and other crossing activities that might cause conflicts. These conflicts might be relatively confined, or might occur randomly over a segment of roadway.
Option:
The combined Bicycle/Pedestrian (W1115) sign (see Figure 9B3) may be used where both bicyclists and pedestrians might be crossing the roadway, such as at an intersection with a shareduse path. A TRAIL XINGThis is from the proposed amendments to the MUTCD (Manual on Uniform Traffic Control Devices). The comment (W1115P) supplemental plaque (see Figure 9B3) may be mounted below the W1115 sign.
A supplemental plaque with the legend AHEAD or XX METERS (FEET) may be used with the Bicycle Warning or combined Bicycle/Pedestrian sign.
Guidance:
If used in advance of a specific crossing point, the Bicycle Warning or combined Bicycle/Pedestrian sign should be placed at a distance in advance of the crossing location that conforms with the guidance given in Table 2C4.
Standard:
Bicycle Warning and combined Bicycle/Pedestrian signs, when used at the location of the crossing, hall be supplemented with a diagonal downward pointing arrow (W167P) plaque (see Figure 9B3) to show the location of the crossing.
Guidance:
A fluorescent yellowgreen background color with a black legend and border should be used for Bicycle Warning and combined Bicycle/Pedestrian signs and supplemental plaques.
When the fluorescent yellowgreen background color is used, a systematic approach featuring one background color within a zone or area should be used. The mixing of standard yellow and fluorescent yellowgreen backgrounds within a zone or area should be avoided