APPENDIX I—PAVEMENT MARKING MEAN DETECTION DISTANCES AND SNK GROUPINGS FOR THE VES MAIN EFFECT

**Table 12. Mean beginning and ending detection distances and SNK groupings (means with the same letter are not significantly different) of pavement markings for the VES main effect.**
VES	Beginning Detection Distance (ft)	Ending Detection Distance (ft)
HLB	Mean: 297.6 AB	Mean: 250.5 A
Hybrid UV–A + HLB	Mean: 307.5 A	Mean: 241.1 AB
Three UV–A + HLB	Mean: 294.1 AB	Mean: 243.1 AB
Five UV–A + HLB	Mean: 294.4 AB	Mean: 251.0 A
HID	Mean: 253.9 CD	Mean: 198.6 CDE
Hybrid UV–A + HID	Mean: 263.0 C	Mean: 195.7 DE
Three UV–A + HID	Mean: 251.1 CD	Mean: 206.8 CDE
Five UV–A + HID	Mean: 258.4 CD	Mean: 217.1 CD
HOH	Mean: 285.1 B	Mean: 245.7 A
HHB	Mean: 256.0 CD	Mean: 221.4 BC
HLB–LP	Mean: 241.2 D	Mean: 184.5 E