Interim Approval for Optional Use of a Bicycle Signal Face (IA-16) Images Long Description

Attachment IA-16-1. Typical Arrangements of Signal Sections in Bicycle Signal Faces Long Description

This figure shows eight typical arrangements of signal sections in bicycle signal faces.

This figure shows two groups of signal faces. The first group is labeled "A – Vertical Signal Faces" and includes the following five vertical arrangements from top to bottom:

Red bicycle, yellow bicycle, green bicycle
Red bicycle, yellow bicycle, straight-through green arrow
Red bicycle, yellow bicycle, straight-through green arrow, right-turn green arrow
Red bicycle, yellow bicycle, above a horizontal arrangement of a straight-through green arrow to the left of a right-turn green arrow
Red bicycle above a horizontal arrangement of a yellow bicycle to the left of a right-turn yellow arrow above a horizontal arrangement of a straight-through green arrow to the left of a right-turn green arrow

The second group is labeled "B – Horizontal Signal Faces" and includes the following three horizontal arrangements from left to right:

Red bicycle, yellow bicycle, green bicycle
Red bicycle, yellow bicycle, straight-through green arrow
Red bicycle, yellow bicycle, straight-through green arrow, right-turn green arrow

Attachment IA-16-2. Example of How to Prohibit a Left-Turning Bicycle Movement Long Description

This figure shows an example of how to prohibit a left-turning bicycle movement. For the purposes of this description, it is assumed that the north arrow is pointing vertically upward.

This figure shows the signal faces for the northbound approach only. The northbound approach is comprised of a left-turn lane, two straight-through lanes, a right-turn lane, a buffer area, and a bike lane.

Three overhead signal faces for the motor-vehicle lanes are shown on a mast arm that extends out from a support pole on the northeast corner of the intersection. A bike signal face is shown mounted on the support pole on the northeast corner of the intersection. Three different optional arrangements are shown for the bike signal face, all of which have a Bike Signal (R10-10b) sign mounted below them (Attachment IA-16-3 describes the sign in more detail). The first arrangement is a four-section vertical signal face comprised of a red bicycle symbol, a yellow bicycle symbol, a straight-through green arrow, and a right-turn green arrow. A single asterisk is shown next to this signal face. The second arrangement is a four-section vertical signal face comprised of the same signal indications as the first arrangement, with the only difference being that the two green arrows are horizontally arranged with the straight-through green arrow to the left of the right-turn green arrow. A single asterisk is also shown next to this signal face. The third arrangement is a five-section cluster with a red bicycle symbol centered above a horizontal arrangement of a yellow bicycle symbol to the left of a right-turn yellow arrow, which is above a horizontal arrangement of a straight-through green arrow to the left of a right-turn green arrow. A double asterisk is shown next to this signal face.

The description for the single asterisk says, "Four-section signal faces are typically used when the straight-through green arrow and the right-turn (or left-turn) green arrows always begin and terminate together." The description for the double asterisk says, "Five-section signal faces are typically used when the straight-through green arrow and the right-turn (or left-turn) green arrows do not begin and/or terminate together."

Attachment IA-16-03 Long Description
Issued 12/23/13

R10-10b
Bicycle SIGNAL

Reduce character spacing 20%

A	B	C	D	E	F	G	H	J	K	L
12	18	0.375	0.375	4	5	2.5	2.5 C*	4.564	4.564	1.5
18	24	0.375	0.625	4.25	8	3.5	4 C*	7.303	7.302	1.5

COLORS:

LEGEND, BORDER — BLACK
BACKGROUND — WHITE (RETROREFLECTIVE)

This sheet shows the design and fabrication details, including dimensions, for the Bicycle SIGNAL (R10-10b) sign. The sign is shown as a vertical rectangle with a white background and a black symbol, legend, and border. The symbol is composed of a bicycle. Below the symbol is the legend SIGNAL.

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