Evening star. [volume] (Washington, D.C.) 1854-1972, 1928-07-29
BRIEF. CLEAR SIGNS ARE URGED
IN SURVEY BY SIGNAL EXPERTS
Markers Should Be Placed Near as Possible
to Points Where Message
Is to Be Obeyed.

slow, yellow with black letters: caution,
yellow with black letters: one-way and
detour, white with black letters; direc-
ton and information, white with black
letters; restriction. no parking, orange
with white letters; restriction, limited
parking. green with white letters.
The stop sign color combination Is
recommended as practical compro-
mise between the two color schemes
which have been In general use, yellow
With black letters or red with white
letters, recommended respectively by
the joint board on interstate highways
End the traf1c signal color code COM
nittee.
The new recommended color combi-
nation continues the use of the estab-
lisned yellow background. but recognizes
the accepted meaning attached to the
color red" by substituting it for the
color black" for the word stop"
This has particular value wherever the
word Is illuminated from behind or Is
made Of rejecting material
THE specified word arrangements
of signs should be used without varie-
ton because Standardization Is of the
highest importance In this feature"
the report maintains. THE workings
have been developed with the objective
of using the fewest possible simple
words, so arranged as to convey ccnl-
plcte message Equivalent words may
be substituted, if the size and arrange
ment are followed.
Illumination.
signs should be illuminated so as
to be visible at night as we'll as in day.
light Recommended msthods are:
Attached lights flooding the face of the
sign: transparent letters illuminated
from the rear; reflex glass letters IL
Illuminated by headlights of vehicles:
placement so as to be illuminated by
street lights.
"All signs should be maintained con-
tinuously in good order and clear
legibility by cleaning whenever neces-
sary. repainting whenever required
and prompt replacement when broken
or defective.
"All = ms should be located as nearly
as POI =, at the point where the mes
sage Is 10 be obeyed, giving due regard
TO the character of the message.
whether it is warning of hazards
which the vehicle is approaching, or
whether it is an order which is TO be
obeyed at particular place.
THE suggested heights for signs are
eight feet above pavement on nxe0 posts
set in the sidewalk at least IL inches
back from the curb, and four feet above
pavement on movable posts when used
in the roadway.
I'm cases where signs are equipped
with rejecting elements for illumina-
ton by approaching vehicles, care
should be taken that the sign be so
placed as to appear illuminated to the
driver of the vehicle.
"All signs except those of the direc-
ton and restriction groups are to be
| located. so that they are within the un-
obstructed view of an approaching
| driver, and in order to prevent them
/ from being oEscured by standing We
| hicles. regulation be enacted and en-
| forced, limiting the parking of vehicles
/ near intersections"
The councils main committee ";
aided by local committees in the citi'
studied. The survey was carried on j.
| cooperation with the American Engi-
neering Standards Committee. the Ma
tional Conference on Street and High
way Safety. the U. S. Bureau of Stand
ards, the National Safety Council. the
American Association of State Highway
Officials and other organizations.