Geomatic Technologies completes the RTA School Speed Zone Project
Sydney, Australia 2006 – Geomatic Technologies (GT), has successfully completed the Roads and Traffic Authority (RTA) School Speed Zone Project.
Project Brief - The NSW RTA maintain a system of school speed zones and pedestrian crossings that help protect access to over 1,400 primary and secondary schools throughout Sydney. A field audit was decided as the most cost effective way to capture accurate spatial information that could be used to populate the RTA Safety Around Schools Oracle database and in November 2004 GT mobilised two field capture teams to Sydney for the projects 4 month duration.
The traffic management facilities surrounding each school were surveyed using GT’s Asset Inspection Mapping System (AIMS) and the following features were captured and supplied in a school precinct format compatible with the RTA enterprise systems. All features were coordinated and delivered with a range of attribute data as well as extensive digital photography;
- School Speed Zone sections
- Pedestrian Crossings
- School Gates
- Roadside Parking facilities
- Supervisory Crossings
- School entrance and exit routes from main roads and side streets
Project Solution - Two 2-WD mapping vehicles were configured with the GT AIMS hardware (computers, differential GPS, OH&S fit-out) and software. The Sydney school, cadastre and road networks were loaded into the AIMS software and attribution forms were customised to enable recording of all project assets. An extract from the RTA school database active as a layer in the AIMS map window was used by the survey teams for navigation purposes to each site and to ensure that all schools in the project were visited. Active real time logic tests in the AIMS software were employed to avoid random errors which conflict with industry standards and the project technical specification. For example, upon attributing a start school zone and end school zone GPS coordinate the length of school zone was automatically calculated.
Linear traffic management features such as 40kph speed zone restriction were supplied in a GIS-ready format fully attributed with direction of travel, times of operation and network connectivity with other roads contained in the same school precinct. Discreet traffic management features such as school access gates, traffic signs and school pedestrian crossings were also coordinated and photographed with a digital camera. A range of pedestrian protection systems such as kerb extensions, refuge areas and dedicated street lighting were collected for every road precinct.
Project field-work was completed inside the required 4 month window and RTA survey and GIS staff completed a 10% random audit of the project data to confirm quality levels. GT’s data exceeded the 95% accuracy standard required by the RTA.
Download PDF File