Digital Terrain Model of the Netherlands’ Busiest Bridge

Van Brienenoordbrug Bridge是整个荷兰最繁忙的桥梁，平均每天平均驾驶235,000辆车。每年约有150,000艘船和船只在它下面的船只，每年增加150次，以允许它们。为了让这座桥梁安全 - 现在和在未来 - 有必要完整的图片，目前的修复状态，因此Geomaat设计了一个数字地形模型（DTM）。

The Van Brienenoordbrug is a large twin tied-arch bridge on the eastern side of Rotterdam. It carries the 12-lane A16 motorway across the Nieuwe Maas river. Constructed in 1965, it has been a landmark on the local skyline ever since. It is named after the Brienenoord islet in the river, on which some of its pillars have been built.

“I didn’t expect Geomaat to generate so much data with a single Streetmapper scan,” said Hans Haenen, Infrastructure Project Manager at皇家HaskoningDHV。

DTM design

In late November 2019, Geomaat surveyed the Van Brienenoordbrug bridge using theStreetMapper-IV.。单个扫描足以生成关于桥的许多数据。同时，360-degree imageswere captured of the bridge. All the data was converted into a3D point cloud，随后用于从上方设计桥的完整DTM。DTM设计揭示了桥梁中的所有扭结和凹痕。

当DTM提供给客户端时，Rijkswaterstaat(RWS), they expressed their surprise at how much data could be captured in a single scan using the Streetmapper-IV: the entire road surface on the bridge as well as surrounding objects, such as the traffic barriers and the arches. All hard surfaces and cable ducts are also clearly visible. The 3D point cloud was used to design a DTM to provide insight into the current state of the bridge.

Image courtesy: Geomaat.