The information below is intended to reflect the preferred practice of Main
Roads Western Australia ("Main Roads"). Main Roads reserves the right to update
this information at any time without notice. If you have any questions or comments please contact Con Magriplis by e-mail or on (08) 9323 4540.
To the extent permitted by law, Main Roads, its employees, agents, authors and contributors are not liable for any loss resulting from any action taken or reliance made by you on the information herein displayed.
Editorial Change for Sub-clause BDC 1-16 Utilities (Services).Sub-clauses BDC5-13.1 and 13.2 added.
References to Austroads documents updated. RTE Branch's Guideline Document No. updated.
RTE Branch's Guideline Document No. updated.
Editorial Change for Sub-clause BDC 5-13.1 and 13.2. on page 10 of Section 206.
Traffic Engineering Standards Manager Dave Landmark's Telephone No. changed.
Group 2 Vehicles 4 & 5 added.
It is proposed that the SDB is to be used for roadwork design projects and bridgework design projects costing more than $454,545.45 (excl. GST). For design projects costing less than these amounts the ETS and BDS term contracts respectively have been assumed would be the mechanism for delivery of these design projects.
Section 1 of the SDB contains project specific standards and Section 2 contains standard clauses. For each sub-section within Section 1 and 2, a contact (custodian) name has been provided. This person will on a regular basis (say every 2 - 3 years) update their sub-section of the Brief.
The sub-sections in Section 2 of the SDB each relate to a different design discipline. The Principal's Representative will be able to build up Section 2 of the SDB in a similar fashion to a Tender Document, by only selecting the sub-sections in Section 2 that are relevant to the project. Section 1 and 2 of the SDB will need to be customised by the Principal's Representative so that it meets the project requirements.
The SDB has tried to be comprehensive and the Principal's Representative can delete clauses that are not applicable. This approach is considered the safest as generally the implications of omitting a clause in error are far worse than including a clause that is superfluous. Note retain Section or Clause numbering sequence by inserting "Not Used" in place of deleted text, whether a whole Section is deleted or Clauses within a Section.
Where possible, clauses within the SDB have been revised to refer to Main Roads online Guidelines/Standards in order to simplify and condense the Brief.
The Supply and Transport Branch have already updated the Tender Conditions that accompany the SDB and these can be found on the Main Roads website in the TDP area under AS4122.
Guidance Notes must be deleted from the final document after using for reference. Similarly text in blue italics within the Brief must be deleted from the final document.
It is recommended that the author contacts the custodian of the appropriate sub-section when specifying standards for the project as standards used in previous work may no longer be appropriate.
Section 101 Project Overview
Section 201 General Provisions
Section 202 Survey and mapping
Section 203 Environmental Management
Section 204 Ground Investigations and Pavement Design
Section 205 Road Design & Traffic Engineering
Section 206 Structural Design
Section 207 Landscape Design
Section 208 Land Management
Section 209 Tender Documentation
Section 210 Post Design Support