OpenTunnel Designer 2024 Minor Update 1 (24.00.01.088)

The OpenBuildings development team is pleased to announce the availability of OpenTunnel Designer 2024 Minor Update 1 (24.00.01.088) is the first and only purpose-built software for tunnel modeling and design. This minor release includes enhancements and improvements to existing tools and software security.


I. Enhancements

1. Modeling – Added option to model shotcrete for TBM tunnels. The shotcrete should be modeled as one single part between the theoretical excavation shape and the extrados.
2. Modeling – The limitation of tagging rock bolts only if the geometry was intersecting the theoretical excavation shape has been removed.
3. Reports – Construction Scheduler – Improved the speed of generating the report.
4. Reports – TBM-UTR – Improved the speed of generating the report.
5. PLAXIS Interoperability – The shotcrete element for TBM tunnels is now transferred to PLAXIS.
6. Miscellaneous – Added Microstation 2024.00.02 tech preview features

II. Error corrections

1. Modeling – Fixed an issue with solid creation when the length of the profiles was not equal with the length of the alignment.
2. Modeling – Fixed an issue where when the user modifies a perforator having diameter/length equal with the section length of the tunnel, and the perforator edges touches both edges of a tunnel section, the cut doesn't work.
3. Modeling – Fixed an issue where cell type auxiliaries are not placed correctly on tunnel transition.
4. Modeling – Fixed an issue where auxiliaries are not placed correctly on tunnel transition if the placement method has been chosen as “Custom” for extrusion.
5. Reports – Fixed an issue where excavation subspaces can't be seen in Quantities Report if a material has not been assigned to the element.


OpenTunnel Designer is a comprehensive tunnel information modeling application built on OpenRoads technology addressing the geometric layout, connection to analysis and design, visualization and documentation for conventional and mechanized (TBM) tunnels at any scale of tunnel project. Built using MicroStation CONNECT Edition PowerPlatform and the Civil Framework technology, it allows you to collaborate more efficiently across disciplines, facilitating data re-use across the tunnel life cycle from concept to design and analysis to construction, and all the way to maintenance and operations. OpenTunnel Designer features several custom modeling tools geared to rapidly build accurate physical tunnel models, tied together parametrically, allowing for instant updates to the tunnel based on potential changes to roadway/rail geometry. OpenTunnel Designer leapfrogs the need for proficiency in 3D drafting, by allowing you to parametrically define, re-use and assemble components making the tool easy to use for tunnel, structural engineers as well as roadway/rail engineers. Preliminary cost estimates provide quick insights into structure costs, and you can quickly leverage the tools in the product to rapidly develop realistic renderings for project pursuits or public presentations.

What’s New in OpenTunnel Designer 2024 Playlist


Bentley Systems Inc. is a software development company that supports the professional needs of those responsible for creating and managing the world’s infrastructure.

Owner: Bentley Systems Inc.
Product Name: OpenTunnel Designer
Version: 2024 Minor Update 1 (24.00.01.088)
Supported Architectures: x64
Website Home Page : www.bentley.com
Languages Supported: english
System Requirements: Windows *
Size: 3.3 Gb