12.3 - Cost risks
12.3 - Cost risks
Procedure
As a general principle, if there is at least a five percent risk that any of the following categories or sub-categories could account for a variation in total project cost of more than ±10 percent then it should be classified as ‘high risk’.
Most of the cost risks are comparable with roading risk although there may be differences in their precise description and nature, which should be allowed for in completing worksheet A13(a) in volume 1.
| Base Travel Demands | Tangata Whenua issues | As for roading. Refer to worksheet A13(a) in volume 1. |
|---|---|---|
| Emissions | ||
| Landscape and visual | ||
| Ecological effects | ||
| Archaeological and historic sites | ||
| Social networks and severance | ||
| Economic/amenity impacts on land users | ||
| Land and property | Property acquisition | |
| Property economic value | ||
| Earthworks | Knowledge of ground conditions | |
| Complex/unpredictable conditions | ||
| Design form | ||
| Extent of topographical data | ||
| Source and disposal of material | ||
| Other engineering costs | Engineering complexity | |
| Signalling and communications | Signalling and communications infrastructure should generally be considered a high risk element of engineering costs. | |
| Operating surplus/deficit | Unless the service operating surplus/deficit (the balance of revenue and operating costs) forms a large part of total costs, it would normally be classified as low risk. | |
| Services | Existence, location and condition | As for roading. Refer to worksheet A13(a) in volume 1. |
| Site flexibility | ||
| Co-operation of utilities |
