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You searched in: Natural hazard risk management

1

Category: Natural hazard risk management

Research Report 539 A new vehicle loading standard for road bridges in New Zealand

Published: Nov 2013
  • Reference: 539
  • ISBN: 978-0-478-40789-1
  • Author: G Taplin, AECOM, Melbourne, M Deery, AECOM, Sydney, T van Geldermalsen, Melbourne, J Gilbert, AECOM, Auckland, R Grace, AECOM, Melbourne

This research report proposes a new vehicle loading standard for the design and evaluation of road bridges and other highway infrastructure in New Zealand. It is based upon a literature review of current traffic loading and bridge evaluation specifications in New Zealand and overseas, as well as a review of studies into the economic aspects of bridge design loadings and the economic ...

  • Author: Wood, J.H., Chapman, H. E., Brabhaharan, P.

The report covers state highway bridges in the Canterbury region that were subject to significant ground motion under the Darfield and Christchurch earthquakes of September 2010 and 22 februray 2011. The report documents, ground motions, bridge damage, structural analysis, interpretation of results and geotechnical observations including liquefaction.

  • Reference: 409
  • ISBN: ISBN 978-0-478-36452-1 (electronic)
  • Author: University of Canterbury

This research develops an assessment tool and provides initial findings of whether RCAs are meeting their obligations under the Civil Defence and Emergency Management (CDEM) Act 2002, which states that the road network, among the other lifelines utilities, should be able to 'function to the fullest possible extent during and after an emergency'. A self-assessment benchmarking tool was...

  • Reference: 415
  • ISBN: ISBN 978-0-478-364842 (electronic)
  • Author: GHD Limited, University of Auckland, Brian Smith Advisory Services, National Asset Management Steering (NAMS) Group

The requirements of the 2002 Local Government Act have led to a greater emphasis on local authorities having a holistic approach to risk management. However, it is widely considered that compared with other disciplines, the practical application of risk management is still lacking in the area of transportation.

This research project aimed to establish a comprehensive yet simple...

5

Category: Natural hazard risk management

Research Report 382 Using risk analysis to assess treatments for frost and ice

Published: Aug 2009
  • Reference: 382
  • ISBN: ISBN 978-0-478-35212-2 (PDF) ISBN 978-0-478-35213-9 (paperback) ISSN 1173-3764 (PDF) ISSN 1173-3756 (paperback)
  • Author: Opus International Consultants Ltd

The comparative effects on skid resistance of the two commonly used treatments for frost and ice on New Zealand roads, mineral grit and the anti-icing/de-icing agent calcium magnesium acetate (CMA), were examined through an on-road test programme. This involved locked-wheel braking tests on selected test sites under a variety of conditions using an instrumented car. Tests were conducted for...

6

Category: Natural hazard risk management

Research Report 366 Earthquake performance of long span arch culverts

Published: Dec 2008
  • Reference: 366
  • ISBN: ISBN 978-0-478-33472-2 (paperback) ISBN 978-0-478-33471-5 (PDF) ISSN:1173-3756 (paperback) ISSN 1173-3764 (PDF)
  • Author: Opus International Consultants Ltd

Dynamic numerical modelling has been carried out in 2005–2007 to investigate the seismic performance of an 11.66 m span, 7.29 m rise, high profile arch culvert. The horizontal components of three earthquakes were used, scaled for Wellington conditions for 1:500 and 1:2500 year recurrence intervals. The effects of a number of parameters were tested by varying their values. These parameters...

7

Category: Natural hazard risk management

Research Report 355 Engineering lifelines and transport - should New Zealand be doing it better?

Published: Aug 2008
  • Reference: 355
  • ISBN: ISBN 978-0-478-33413-5 (Part 1) ISBN 978-0-478-33414-2 (Part 2) ISSN 1177-0600
  • Author: Maunsell Ltd

This project examined New Zealand engineering lifelines activity, its level of integration in road controlling authority management practices, and its relationship to the resilience of roading networks to natural hazards. It examined and compared lifelines practice at three levels – international, New Zealand regions and individual road controlling authorities. Relative risk exposures...

8

Category: Natural hazard risk management

Research Report 296 Natural hazard road risk management Part III: performance criteria

Published: 2006
  • Reference: 296
  • ISBN: ISBN 0-478-28708-9 ISSN 1177-0600
  • Author: Opus International Consultants Ltd

Road networks are lifelines for the community and are essential for the social and economic well-being of New Zealand. Natural hazards cause considerable damage to road networks from time to time and cause widespread disruption to transportation, leading to significant repair costs to road controlling authorities, access difficulties for emergency services, and disruption to road users and...

  • Reference: 276
  • ISBN: ISBN 0-478-25387-7 ISSN 1177-0600
  • Author: University of Canterbury

The New Zealand Civil Defence Emergency Management (CDEM) Act (2002) requires all lifelines, including the road network, to be able to function to the fullest possible extent during and after an emergency, and that lifeline providers have plans for such continuity that can be made available to the Director of CDEM if requested. To be able to meet this legislative requirement, road network...

10

Category: Natural hazard risk management

Research Report 272 Standardisation of design flows for coastal catchments in New Zealand

Published: 2005
  • Reference: 272
  • ISBN: ISBN 0-478-25383-4 ISSN 1177-0600
  • Author: Craig Martell

As one of the outputs from the Transfund Research Project Standardisation of Design Flows and Debris Control Intake Structures, the purpose of this report is to provide further information for the bridge and culvert designer on hydrological approaches that are appropriate to the estimation of design flows in low-lying coastal catchments.

Keywords: catchment, coastal,...

  • Reference: 222
  • Author: Opus International Consultants Ltd

Road networks are lifelines for the community and are essential for the economic and social well-being of New Zealand. Significant natural hazard events can cause widespread damage to transportation networks, leading to significant repair costs to road controlling authorities, access difficulties for emergency services and disruption to road users and the community at large.

To...

12

Category: Natural hazard risk management

Research Report 208 Progressive underslip stabilisation using gravel columns

Published: 2001
  • Reference: 208
  • Author: GHD Limited

This report presents the findings of the monitoring programme undertaken by GHD at Snake Hill (SH1 RP 144/11.34), a road slip site which was stabilised using graded gravel column drains. Monitoring of pore water pressures was undertaken using piezometers, inclinometers were monitored to determine deformation, and computer simulated back analysis was undertaken. This report discusses the...

  • Reference: 217
  • Author: Opus International Consultants Ltd

Road networks are lifelines for the community and are essential for the economic well-being of New Zealand. Significant natural hazard events can also cause widespread disruption to transportation, leading to significant repair costs to road controlling authorities, access difficulties for emergency services, and disruption to road users, tourists and the community at large.

As there...

14

Category: Natural hazard risk management

Research Report 159 The effect of link reliability on benefit/cost ratios

Published: 2000
  • Reference: 159
  • Author: Opus Central Laboratories

This report develops project evaluation procedures to incorporate risk assessment of road link reliabilities. The current Transfund evaluation procedures and recent work in this area are reviewed and suggested directions discussed. Simple link reliabiity theory is then developed, as well as typical examples of how this theory could be applied. The application of this theory within a project...

  • Reference: 135
  • Author: Riddolls & Grocott Ltd

A methodology has been developed, based on a study carried out in 1998-99, to assist in selecting optimum slope-failure preventive maintenance programmes for highways. The existing risk to road users from slope instability is first quantified, then the effectiveness of maintenance programmes in reducing the risk to road users is determined and the mitigated risks quantified, The risks are...

16

Category: Natural hazard risk management

Research Report 148 Risk assessment methods in road network evaluation

Published: 1999
  • Reference: 148
  • Author: University of Canterbury

This study, carried out in 1998, investigates hazards that have the potential to close the Desert Road, which traverses for some 60 km the Central Volcanic Plateau of the North Island, New Zealand, at c.1000 m altitude. It is part of New Zealand's major north-south link, State Highway 1, and it provides a case study for the application of risk assessment methodology to the evaluation of...

17

Category: Natural hazard risk management

Research Report 147 Security of New Zealand's strategic roading system

Published: 1999
  • Reference: 147
  • Author: Montgomery Watson (NZ) Ltd

The reliable operation of New Zealand's road network is critical to both its economic success and its social development. Disruption to some parts of the network may therefore have a large negative impact on these.

The report outlines a systematic "desktop" approach which, by reviewing the importance of individual links in the network, and the actual risk of travel disruption. it...

  • Author: Riddolls & Grocott Ltd

A North American method for establishing an optimised slope-failure preventive maintenance programme for use by roading authorities has been identified and trialed by way of a case study, to determine its application to New Zealand roads, The method requires a knowledge of the slope instability, and accident and maintenance history affecting the site. This information can be used to quantify the...

19

Category: Natural hazard risk management

Research Report 078 Seismic testing & behaviour of a 1936 designed reinforced-concrete bridge

Published: 1997
  • Reference: 78
  • Author: University of Canterbury Department of Civil Engineering

The laboratory testing and inelastic computer analysis are described for a 1936-designed bridge which is typical of many of the older, reinforced-concrete, multi-span bridges in New Zealand. The structure has plain-round (undeformed) reinforcing bars and anchorage details, shear strength, and column-transverse reinforcement that are potentially deficient. Despite the suspected seismic...

20

Category: Natural hazard risk management

Research Report 077 Seismic evaluation and retrofit technology for bridges

Published: 1997
  • Reference: 77
  • Author: University of Canterbury Department of Civil Engineering

Despite recent progress by the structural engineering profession in addressing bridge seismic risks, several areas exist where improvements in bridge evaluation and retrofit practices are needed. This report reviews the common seismic deficiencies of bridges, procedures and criteria for the seismic evaluation of bridges, and the engineering techniques which have been used, up to 1996, for...

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