The Effects of Commercial Electronic Variable Message Signs ...

Variable Ref. # Advantages Disadvantages
5.1.2 Day/night viewing:
dawn; dusk; sun-glare
53 Nighttime viewing of bright
images important.
5.1.3 Visual flow Less important.
5.2 Official signs 160, 2,
26, 100
5.2.1 Type: regulatory,
advisory, navigational
5.2.2 Location: left, right,
overhead
5.2.3 Lighting: illuminated;
luminous (VMS); retroreflective
5.2.4 Density: number in
view, type mix
5.2.5 Dynamics: change
rate; motion; video
5.2.6 Message: text;
graphics
5.3 On-premise signs
5.3.1 Type: conventional;
Tri-vision; digital; full
motion video
5.3.2 Location: left, right,
high, low
5.3.3 Lighting: illuminated;
luminous; LED
5.3.4 Density: number in
view, type mix
5.3.4 Dynamics: change
rate; motion; video; sound
94 Regulatory most important.
44, 15 Billboard can conflict with
sign.
Luminous (VMS) signs most
important.
15 Many variations in urban
settings.
Extremely important point of
possible conflict.
144 Digital and video most
important.
144
144 Bright, high resolution very
compelling.
45
Motion and video not yet
allowed.
Less important
Tri-vision likely to disappear.
Difficult to measure.
Can add to visual clutter. Many variations possible.
144 Extremely important variable.