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Dear Editor
I recently made a submission to NZTA (and to various government ministers) regarding the Auckland Harbour Bridge Shared Path (‘SkyPath 2.0’). The submission contains details of what I consider to be substantive and serious flaws and omissions regarding the Auckland Harbour Bridge Shared Path Single Stage Business Case methodology and the shared pathway design.
I believe that NZTA has presented a very misleading case to the public, and therefore thought that you might be interested in the contents of my submission as the project will likely result in the wastage of a large amount of taxpayer/ratepayer money. Indeed, some of the research referenced in the submission is applicable to cycle paths and related infrastructure spend in general, not just SkyPath.
In particular, I submitted evidence that:
- The stated problems claimed in the business case are unquantified and unsubstantiated.
- Projected cycle and pedestrian usage estimates and investment objectives are based on assumptions, flawed math, and lack sufficient statistical foundation.
- A large body of evidence from existing research into cycling behaviours and cycling infrastructure spend appears to have not been consulted or was ignored.
- Based on existing research, the estimated pedestrian and cyclist usage rates appear to be unrealistic and wildly optimistic.
- The demand forecasts provided by NZTA are erroneous and misleading due to major differences in gradient, distance and rainfall between the AHB shared path and the case studies/examples cited in the NZTA business case.
- The business case does not take into account research evidence regarding the effects of steep inclines, commute distance, travel time, or precipitation on usage volumes.
- While Austroads is cited as the design standards reference, there are a number of serious and fundamental breaches of the Austroads design specifications, specifically:
- Pedestrian walkway design parameters relating to gradient and distance are not taken into account.
- Cycle pathway design parameters relating to uphill cycling are not taken into account.
- Cycle pathway design parameters relating to the hazards and safety of downhill cycling are not taken into account.
- The implications of the design modifications required to conform to the Austroads design standards I believe represent major obstacles and cost challenges to the successful design and construction of the Auckland Harbour Bridge Shared Path – which in turn increases the risk of another cost blowout.
Kind regards,
Concerned Aucklander
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