D11 - ENGINEERING DIVISION. VISIBILTY DURABILITY COST.
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Transcript of D11 - ENGINEERING DIVISION. VISIBILTY DURABILITY COST.
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D11 - ENGINEERING DIVISION
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VISIBILTY DURABILITY COST
TRAFFIC STRIPES & TRAFFIC SIGNS
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Traffic Signs and Stripes are one of the Most Cost-effective Means of Improving Highway Safety
The Cost of Traffic Sign Panels and Stripes is Minimal Compared to the Total Project Cost < 4%
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PAINTTO
HIGH REFLECTIVE THERMO
TRAFFIC STRIPES
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PAINT STRIPES
• D-11 has 4,000 lane miles
• Up until 2010 District 11 used paint stripes
• Paint Life Expectancy < 1 Year
• To maintain visibility Caltrans MTCE crew had to refresh the paint stripes on a yearly basis
• Total Yearly Cost = $3,000,000 million
Issues: Safety + Labor Cost + Material Cost
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THERMOPLASTIC STRIPES
In 2009 we Started Experimenting with
THERMOPLASTIC STRIPES
HEATED-PLASTIC & REFLECTIVE BEADS
• Layer #1 heated thermo, 400-440 degrees
• Layer #2 Glass beads on top of the thermo
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THERMOPLASTIC STRIPES
THERMOPLASTIC CLOSE-UP VIEW
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THERMOPLASTIC STRIPES
THERMOPLASTIC TRUCK
BEADS TANK
HEATED THERMOPLASTIC
TANK
NOZZLES
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THERMOPLASTIC STRIPES
SPRAY NOZZLES
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THERMOPLASTIC STRIPES• D-11 Started Experimenting 2009
• Reflectivity Value: White = 250 Yellow = 150
COST PER YEAR OF SERVICE
$ COST/LF LIFE EXPECTANCY YEARS
COST PER YEAR OF SERVICE
Paint $0.18 1 $0.18Thermoplastic $0.31 4 $0.08
IN 2010 DISTRICT-11 SWITCHED
STRIPES ALL THERMO
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HIGH REFLECTIVE THERMOPLASTIC STRIPES
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HIGH REFLECTIVE THERMOPLASTIC STRIPES
• D-11 Started Experimenting 2011
• Layer #1 Heated Thermoplastic Material
• Layer #2 Highly Reflective Glass Beads
• Layer #3 Standard Glass Beads
• Cost $/LF in 2011 = $0.42
• Cost $/LF in 2014 = $0.32
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FINAL PRODUCT CLOSE-UP
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HIGH REFLECTIVE BEADS
DRY BEADS CLOSE-UP
COIN(DIME)
STANDARD BEADS
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DRY BEADS CLOSE-UP
HIGH REFLECTIVE BEADS
STANDARD BEADS
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FINAL PRODUCT ENHANCED THERMO
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RETROREFLECTIVITY IN (MCDM-2LX-1)
YELLOW STRIPES
RETROREFLECTIVITY COMPARISON
WHITE STRIPES
3XRETROREFLECTIVITY
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RETROREFLECTIVITY COMPARISON
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HIGH PERFORMANCE THERMOPLASTIC HAS:
DISTRICT-11 IS CURRENTLY USING ENHANCED THERMOPLASTIC ON ALL NEW PROJECTS
D11 - STRIPING CONCLUSION
Standard Thermo Vs
High Performance Thermo
• ALMOST THE SAME COST
• 3X TIMES THE RETROREFLECTIVITY
• HIGH VISIBILITY DURING DRY & WET WEATHER IN 2012 D-11 SWITCHED STRIPES
TO ALL HIGH REFLECTIVE THERMO
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WHAT IS NEXT IN FOR STRIPING?
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SIGN SHEETING
Reflectivity Durability Cost
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RETROREFLECTIVE SHEETING TYPES
WHICH TYPE SHOULD WE USE?
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RETROREFLECTIVITY
Retroreflectivity is defined as the light that returns to the light source
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2010
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CAR HEADLIGHTS OFF (Location 1)
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CAR HEADLIGHTS ON (Location 1)
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CAR HEADLIGHTS OFF (Location 2)
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CAR HEADLIGHTS ON (Location 2)
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CAR HEADLIGHTS OFF (Location 3)
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CAR HEADLIGHTS ON (Location 3)
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CAR HEADLIGHTS OFF (Location 4)
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CAR HEADLIGHTS ON (Location 4)
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RETROREFLECTIVITY / WARRANTY
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D-11 REPORT
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• REDUCE INFRASTRUCTURE COST
• REDUCE ELECTRICAL ENERGY COST
• INCREASE SAFETY•REDUCE MAINTENANCE COST (Bulbs, Copper Theft)
SAVINGS & BENEFITS - TYPE XI
“2015 LIGHTS OUT”
IN 2012 D-11 SWITCHED TO
TYPE XI SHEETING FOR ALL SIGNS
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JULY 2014 - TYPE XI SHEETING STATEWIDE STANDARD
FOR GUIDE SIGNS
TYPE XI SHEETING A STATEWIDE STANDARD
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OTHERS REASONS FOR BETTER & BRIGHTER
SIGNING & STRIPING MATERIALS
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MUTCD MINIMUM MAINTAINED RETROREFLECTIVITY LEVELS
REPLACE NON-COMPLIANT WARNING AND REGULATORY SIGNS 2015REPLACE GUIDANCE AND STREET NAME SIGNS 2018
MANUAL ON UNIFORM TRAFFIC CONTROL DEVICES
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NOW MORE THAN EVER WE NEED BRIGHTER SIGNING & STRIPING
ELDERLY BABY BOOMERS POPULATION IS GROWING
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GROWING DRIVING POPULATION
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CHOOSE WISELY