traffic control device demonstration june 15, 2005 sponsored by mn/dot and northland atssa conducted...

Traffic Control DeviceDemonstration

June 15, 2005Sponsored by Mn/DOT and Northland ATSSA

Conducted at the 3M Transportation Safety Center in Cottage Grove, Minnesota

Traffic Control Device Demonstration – June 15, 2005Summary Report

Autoflaggernot part of the survey

Traffic Control Device Demonstration – June 15, 2005Summary Report

• Daytime top half– Brightness 98%– Legibility 93%

• Nighttime top half– Brightness 94%– Legibility 90%

No PassingSign

Traffic Control Device Demonstration – June 15, 2005Summary Report

• Font– Top is easiest to read

– Bottom is easiest to read

• Sheeting– Right side is brighter– Right side is clearer

Glyph TrailSign

Traffic Control Device Demonstration – June 15, 2005Summary Report

• Typical Comments– Looks uniform across – NO Difference – Different shades of green?– Left side is brighter?– Center is brighter?– Didn’t look like the sign

was level

OXOXOXSign

Traffic Control Device Demonstration – June 15, 2005Summary Report

• Daytime– Left 64% – Middle 36%

• Daytime– Middle 38%

– Right 62%

FidgetySign

Traffic Control Device Demonstration – June 15, 2005Summary Report

• Nighttime– Left 15%– Middle 85%

• Nighttime– Middle 20%

– Right 80%

FidgetySign

Traffic Control Device Demonstration – June 15, 2005Summary Report

• Daytime– Left 66%– Middle 4%– Right 30%

ConspicuitySigns

Traffic Control Device Demonstration – June 15, 2005Summary Report

• Nighttime– Left 86%– Middle 5%

– Right 9%

ConspicuitySigns

Traffic Control Device Demonstration – June 15, 2005Summary Report

• Daytime– Left 92% – Middle 5%– Right 3%

LegibilitySigns

Traffic Control Device Demonstration – June 15, 2005Summary Report

• Nighttime– Left 59%– Middle 5%– Right 36%

LegibilitySigns

Traffic Control Device Demonstration – June 15, 2005Summary Report

STOPSigns

• Daytime– Brightness

• Left 61%• Right 39%

– Legibility• Left 63%• Right 37%

Traffic Control Device Demonstration – June 15, 2005Summary Report

STOPSigns

• Nighttime– Brightness

• Left 96%• Right 4%

– Legibility• Left 86%• Right 14%

Traffic Control Device Demonstration – June 15, 2005Summary Report

Wet ReflectivePavement Markings

• Typical Nighttime Comments– Awesome– Non-wet tape looks black– Obviously superior– Both white and yellow

Traffic Control Device Demonstration – June 15, 2005Summary Report

TypicalLane Closure

• Typical Comments– Drums demand respect, solid wall– Hard to tell lanes are merging at barrels– Visible / Clean… not confusing– Very visible, good alignment– Type III with arrow was critical for

direction

Traffic Control Device Demonstration – June 15, 2005Summary Report

Night Maint.Lane Closure

• Typical Comments– 2 arrow boards command

respect– Cones look like a gap in the

closure– Looks cluttered– Direction barricades easier to

follow than barrels– Much better at night than

during the day

Traffic Control Device Demonstration – June 15, 2005Summary Report

VariousDisplays

Traffic Control Device Demonstration – June 15, 2005Summary Report

Questions?