The simulation of gutter / pavement flows on South Australian urban roads

The paper reports, firstly, an investigation of the hydraulic roughness of two urban roadway pavements formed in a 15 m long by 600 mm wide laboratory tilting flume. The two pavements were (a) hotmix bitumen and (b) 20 mm aggregate flush seal. The quantities varied in the study were flow, flow depth and bed slope. Hydraulic roughness was determined in terms of both manning's 'n' and chezy's 'c'. The results confirm pb stone's field observation of n = 0.011 To 0.012 For a main road surface. In the second part of the study, the hydraulic roughness of plastic sheeting covered with various layers of 12 mm birdwire was measured. This information was correlated with the hotmix and flush seal roughness results to fix a set of artificial surfaces whose hydraulic behaviour should closely resemble that of typical urban pavements. The final part of the report presents velocity distributions for flow in a full size tilting rig incorporating the gutter/ pavement geometry commonly used on South Australian urban roadways with simulated pavements representing (a) freeway standard (very smooth) hotmix and (b) fair to good quality hotmix finish approximately that of a typical urban roadway.


  • English

Media Info

  • Pagination: 145-52
  • Monograph Title: A grouping technique to assist pavement management
  • Serial:
    • Volume: 10
    • Issue Number: 2

Subject/Index Terms

Filing Info

  • Accession Number: 01439149
  • Record Type: Publication
  • Source Agency: ARRB
  • Files: ATRI
  • Created Date: Aug 24 2012 10:03PM