Work Zone Speed Management (2015) / Chapter Skim
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Pages 80-83
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From page 80... ...
80 chapter ten SURVEY OF WORK ZONE ENGINEERING AND ENFORCEMENT PRACTICES INTRODUCTION Two online surveys were conducted to gain an understanding of the current state of practice regarding work zone speed management by highway agencies. This chapter summarizes the findings of the Engineering and Enforcement survey.
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81 FIGURE 55 U.S. respondents to engineering and enforcement survey.
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82 Engineering Techniques for Two-Lane Highway Work Zones All Work Zones Most Work Zones Some Work Zones Occasional/ Unique Situations Never No Response Total Dynamic Work Zone Speed Limit Signs 0% 0% 6% 22% 70% 2% 100% Mandatory Reduced Speed Limit only When Workers Present 48% 18% 20% 4% 6% 4% 100% "Fines Doubled in Work Zones" Signage 0% 2% 12% 60% 24% 2% 100% Dynamic Speed Feedback Signs 0% 2% 18% 38% 40% 2% 100% Transverse Rumble Strips at Approach to Work Zone 0% 0% 0% 6% 92% 2% 100% Converging Bar Pavement Markings (optical speed bars) 0% 0% 12% 44% 42% 2% 100% Reduction of Lane Width to Encourage Slower Driving 0% 6% 12% 32% 48% 2% 100% Modified Cone/Barrel Spacing to Encourage Slower Driving 0% 2% 56% 24% 16% 2% 100% Pace Cars/Pilot Vehicles 10% 32% 34% 14% 8% 2% 100% Speed Reduction Warning Signs 0% 0% 4% 10% 84% 2% 100% Wide (10 in.)
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83 Two-Lane Rural Highway Work Zone Enforcement Techniques All Work Zones Most Work Zones Some Work Zones Occasional/Unique Situations Never No Response Count Police Vehicles in Work Zone -- Active Enforcement 0% 10% 40% 32% 14% 4% 100% Police Vehicles (flashing lights OFF) Present in Work Zone, but Not Issuing Tickets 0% 2% 18% 24% 52% 4% 100% Police Vehicles (flashing lights ON)
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