. Official proceedings . n 19 21Ast m Years Figure 4 In our discussion with various roads the question has l)eenraised to the effect that the increase in cost with age might bedue to the constant advance in the art. This is undoubtedlytrue to some extent and if tlie trends are taken ten years fromnow, they will undoubtedly be lower at .all ages. However, ourstudies indicate that the trend line of a road gives a correctvalue of the adxancing maintenance cost of the ])resent inven-tory with increasing age and that the cost of repairs of loco- 48. Ojto - AVCRA6C TREND cr TRUNK \.INZ ROADS WITHVAR

---

. Official proceedings . n 19 21Ast m Years Figure 4 In our discussion with various roads the question has l)eenraised to the effect that the increase in cost with age might bedue to the constant advance in the art. This is undoubtedlytrue to some extent and if tlie trends are taken ten years fromnow, they will undoubtedly be lower at .all ages. However, ourstudies indicate that the trend line of a road gives a correctvalue of the adxancing maintenance cost of the ])resent inven-tory with increasing age and that the cost of repairs of loco- 48. Ojto - AVCRA6C TREND cr TRUNK \.INZ ROADS WITHVARIOUS snOUPS cr LOCOMOTIVCS SHOWN

---

Size: 1875px × 1333px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookdecade1900, bookidofficialproc, bookyear1901