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Tables
Table 1 Ex-ante BCAs for the Northam Bypass project............................................................5
Table 2 Benefits and costs for the Northam Bypass project ($m, in 1991 prices)..............6
Table 3 Benefits and costs for the Northam Bypass project ($m, in 1998 prices)..............7
Table 4 Traffic using the bypass: actual versus predicted ...........................................................9
Table 5 Crash history for the Northam townsite (1985-1998).............................................11
Table 6 Predicted traffic using the Northam Bypass (2000)...................................................15
Table 7 Predicted traffic diverted from the townsite route (2000).......................................15
Table 8 Predicted traffic diverted from other routes (2000)..................................................16
Table 9 Reconstructed MRWA (1999) results...........................................................................21
Table 10 Assumptions about travel speeds...................................................................................24
Table 11 Improved treatment of intersection effects .................................................................24
Table 12 Removing freight benefit...................................................................................................25
Table 13 Change in construction costs and timing......................................................................26
Table 14 Change in traffic levels and growth................................................................................27
Table 15 Change in unit crash cost.................................................................................................27
Table 16 Change in discount rate....................................................................................................28
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