COST EFFECTIVENESS OF URBAN STORMWATER DRAINAGE

The concept that in most urban developments there are two systems of drainage, namely primary and secondary, which have not been considered as a general rule in the assessment of the prevailing standard of flood protection is discussed. The primary system can be considered as providing a convenience for pedestrians and vehicular traffic and the removal of nuisance flows from urban watersheds and long term protection of pavement subgrades, house footings and a minimum standard of protection against flooding. The secondary system consists of the road network constituting floodways by reason of their continuity for the conveyance of flood waters to the nearest stream or major drainage system. There is an urgent need, when designing the primary system, to relate effective flood protection to the apparent protection which is chosen on the basis of an arbitrary selection of storm return period, eg, as set out in Australian rainfall and runoff. The modelling required to do this investigation is not available in a form allowing for its ready application. Planning to provide for comprehensive primary and secondary works at the time of subdivision is the most cost effective way of providing flood protection. (Author/TRRL)

• Record URL:
  • http://arrbknowledge.com
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/isbn/0869101250
• Supplemental Notes:
  • Program and papers from the Australian Road Research Board and South Australian Institute of Technology combined Symposium, the Levels, Adelaide, South Australia, 1983. This paper was presented in Session I: Storm Water Drainage.
• Corporate Authors:

  ARRB

  Melbourne, Victoria  Australia 
• Authors:
  • Tonkin, B C
  • Read, P K
• Publication Date: 1983

Media Info

• Features: Figures; References;
• Pagination: p. 33-43
• Serial:
  • Publication of: Australian Road Research Board
  • Publisher: ARRB
  • ISSN: 0005-0164

Subject/Index Terms

• TRT Terms: Benefit cost analysis; Conferences; Cost effectiveness; Design; Design flood; Drainage; Flood protection; Floods; Guidelines; Loss and damage; Mathematical models; Networks; Prevention; Rainfall; Roads; Runoff; Urban areas
• Uncontrolled Terms: Road networks
• ITRD Terms: 8525: Conference; 226: Cost benefit analysis; 1614: Damage; 9011: Design (overall design); 2937: Drainage; 2569: Flooding; 6473: Mathematical model; 9149: Prevention; 1053: Road network; 4329: Run off; 313: Urban area
• Subject Areas: Design; Highways; Hydraulics and Hydrology; Security and Emergencies; I26: Water Run-off - Freeze-thaw;

Filing Info

• Accession Number: 00379121
• Record Type: Publication
• Source Agency: ARRB
• ISBN: 0 86910 125 0
• Files: ITRD, TRIS, ATRI
• Created Date: Dec 30 1983 12:00AM