Park Station – Digitisation

Delta Scan was appointed by the professional team representing Prasa for the inspections and investigations at Park Station, Johannesburg, South Africa. The Station where it is currently located was built in four stages from 1945 and opened in 1965. The station building covers well over 70Ha and is the largest train Station on the continent

The Professional team’s main objective is to rehabilitate and restore a large section of the station to cater for the growing crowds making use of the Station. The challenges begin with the lack of drawings of the station, lack of survey data and lack of services information.

Delta Scan undertook the project to deliver an up to date 3D Revit model, via laser scanning, to LOD 300 (Level of Development). GPR and UPE Scanning was conducted on columns, beams, slab soffits and retaining walls to provide accurate structural information to the Engineering team pertaining to rebar sizing and layouts. GPR for services was conducted to gather information on water supply, sewerage, storm water piping as well as fiber and electrical lines, all to be plotted onto accurate layouts. A full survey was conducted of the site in question to ascertain digital terrain maps, digital elevation models, contour maps and orthophotos.

The biggest challenge is the fact that the project took place over 2 to 3 levels, combining a basement, concourse and upper level. Delta Scan successfully tied together georeferenced drone pointclouds and ground based laser pointclouds to create all the relevant information with accurate georeferencing.

In the end, over 70000 square meters of laser scanning and Revit modelling was completed, along with surveying, over 50 structural scans, over 10km of underground infrastructure was identified and mapped, and a 4 city block area was converted into a digital replica for the asset owner and professional team to successfully see through the rehabilitation and expansion.