Planning
Exterior Signs
Viewing Distance The following charts are to provide
These charts are general and
Guide assistance in determining the size of
there may be situations that would
require lettering larger than what
lettering to be used in relation to the
is indicated in the chart for a given
distance that a sign is going to be read.
distance of viewing.
Text
Symbols
Letter Height
Viewing Distance
Application
SLettbolHeeghht
ym er H iig t
Viewing Distance
Up To:
Up To:
7.5 M
25'
25 mm
1"
7.5 M
25'
75 mm
3"
12 M
40'
40 mm
11/2"
10.5 M
35'
100 mm
4"
15 M
50'
50 mm
2"
15 M
50'
125 mm
5"
24 M
80'
75 mm
3"
18 M
60'
150 mm
6"
33 M
110'
100 mm
4"
30 M
100'
200 mm
8"
48 M
160'
150 mm
6"
34.5 M
115'
225 mm
9"
75 M
250'
225 mm
9"
39 M
130'
250 mm
10"
97.5 M
325'
300 mm
12"
45 M
150'
300 mm
12"
150 M
500'
450 mm
18"
195 M
650'
600 mm
24"
Wayfinding "Wayfinding" is a term that in recent
or the entrance with services to which
the individual is seeking.
years has been used to describe the
process of finding a destination in the
Identifying destinations people drive
built environment. Signs play an active
to, where they park and where they
role in this process by providing the
walk to is the process of identifying
primary form of communication in way
the paths of transit. Way finding is then
finding
communicating to people along this
pathway, with appropriate directional
In developing a way finding system for
signs.
the exterior of a medical center campus
or the interior of a building you need to
The intersections along the vehicle
follow some common guidelines.
roadway and pedestrian pathway
system need to be identified in their
One first needs to identify the paths
importance for communication. Major
of travel from originating points to
high traffic intersection will require more
destinations.
communication than smaller secondary
intersections. The environments in
On the exterior of a campus this
which these intersections present
involves the roadway system from the
themselves also affects the way finding
main drive entry to the campus to the
program.
main entrance of the building to which
patients and visitors are seeking a
One must look at the path of travel and
service. While this is a primary path,
the decision points that are necessary
a secondary primary path is from the
to reach the end point and where these
visitor parking lot to the main entrance
Page 2-2-3
02/2005
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