Below is the uncorrected machine-read text of this chapter, intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text of each book. Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages.
175 APPENDIX A: ALTERNATIVE GRAPHS FOR FIGURE 32
176 LOW MEDIUM HIGH Figure 36. Test Level Selection Nomograph (Risk<0.005 in 30 years for 1000 ft of bridge railing). TL2 or TL3 TL2 or TL3 TL2 or TL3 TL4 TL4 TL4 TL5 TL5 TL5 Risk Boundary Risk Boundary Risk Boundary
177 LOW MEDIUM HIGH Figure 37. Test Level Selection Nomograph (Risk<0.02 in 30 years for 1000 ft of bridge railing). TL2 or TL3 TL2 or TL3 TL2 or TL3 TL4 TL4 TL4 TL5 TL5 TL5 Risk Boundary Risk Boundary Risk Boundary
178 LOW MEDIUM HIGH Figure 38. Test Level Selection Nomograph (Benefit-Cost Ratio=1). TL2 TL2 TL4 TL4 TL4 TL5 TL5 TL5 TL3 TL3
179 LOW MEDIUM HIGH Figure 39. Test Level Selection Nomograph (Benefit-Cost Ratio=2). TL2 TL2 TL2 TL4 TL4 TL4 TL5 TL5 TL5 TL3 TL3
180 LOW MEDIUM HIGH Figure 40. Test Level Selection Nomograph (Benefit-Cost Ratio=3). TL2 TL2 TL2 TL4 TL4 TL4 TL5 TL5 TL5 TL3 TL3
181 BCR=1 BCR=2 BCR=3 Figure 41. Rehabilitation Nomograph: Upgrade from R350 TL4 to MASH TL5.* A: In this region, upgrade for all hazard levels. *NOTE: It is not cost-beneficial to upgrade from a R350 TL4 to a MASH TL4. B: In this region, upgrade for high or median hazard levels C: In this region, upgrade for high hazard levels. D: Do not upgrade in this region. A B C A B C A B C D D D
182 BCR=1 BCR=2 BCR=3 Figure 42. Rehabilitation Nomograph: Upgrade from R350 TL3 to MASH TL4 or MASH TL5.* A: In this region, upgrade for all hazard levels. *NOTE: When a double line is present, the bottom line represents when it is cost-beneficial to upgrade to a TL4 barrier, where the top line represents when it is cost-beneficial to upgrade to the TL5 barrier. B: In this region, upgrade for high or median hazard levels C: In this region, upgrade for high hazard levels. D: Do not upgrade in this region. A B C A B C A B C D D D
183 BCR=1 BCR=2 BCR=3 Figure 43. Rehabilitation Nomograph: Upgrade from R350 TL3 to MASH TL5. A: In this region, upgrade for all hazard levels. B: In this region, upgrade for high or median hazard levels C: In this region, upgrade for high hazard levels. D: Do not upgrade in this region. A B C A B C A B C D D D
