DOI: 10.17863/cam.116750
title: Research data supporting "Increasing the value of bridge SHM data by leveraging network-level open data"

description: The dataset contains data relating to two bridges, known during construction as Bridge IB5 and Bridge UB11. Both were built in 2015 as part of the Stafford Area Improvement Project - a joint venture between Network Rail, Atkins, Laing O'Rourke, and Volker Rail. Each bridge has Structural Health Monitoring (SHM) systems consisting of numerous fibre-optic stain sensors that were installed during the construction of the bridges. Further sensors, including accelerometers and cameras, were added to Bridge IB5 in 2021. These additional sensors permitted the development of a Bridge Weigh-In-Motion (B-WIM) system for this bridge. The dataset also contains a small amount of data relating to train crossings of Bridge HDB-19 in north London, which was also instrumented with a SHM system. The dataset consists of two ZIP files: Figures_5-9.zip Tables_1,4,5.zip Figures_5-9.zip:- The 'Figure_5' folder contains a CSV file containing processed data of over 19,000 train crossings. These data are derived from a Bridge Weigh-In-Motion (B-WIM) system installed on Bridge IB5. The system uses strains measured using the fibre-optic strain sensors installed on the bridge to estimate the speed of the train, and the loading and spacing of each axle. The folder also contains a Python scripts demonstrating the use of t-SNE and DBSCAN algorithms to process the data, and example SVG output. See the README.txt file for more details. The 'Figure_6' folder contains four example MP4 video files of trains approaching Bridge IB5. These data are derived from a Logitech Brio webcam mounted on the north end of the bridge facing north. The folder also contains a Python script demonstrating a possible method of creating a single 'stacked' image from video data. The 'Figure_7' folder contains several compressed (using gzip) CSV files, each containing details of train movements in Great Britain on a particular hour on 10th July 2024. These data are derived from the Network Rail Open Data feeds - specifically the 'TD' or 'Train Describer' feed. This contains data on train movements between signalling berths for the whole of Great Britain. Also in this folder are a list of timestamps of train crossing events detected using the strain gauges installed on Bridges IB5 and UB11. The folder also contains two example Python scripts demonstrating two possible methods of using the TD feed and data of detected crossings derived from the strain gauges to determine signal berth numbers either side of a structure of interest. The 'Figure_8' folder contains a map in SVG format showing an unlabelled map of the area in the vicinity of Bridges IB5 and UB11. The map data is derived from OpenStreetMap. The 'Figure_9' folder contains a MP4 video file of a tamping vehicle crossing Bridge IB5, and a still image taken from the video in PNG format. These data are derived from a Logitech Brio webcam mounted on the north end of the bridge. Tables_1,4,5.zip: The 'Table_1' folder contains a spreadsheet in ODS format showing the classification if individual trains processed using the CSV file and Python script in the Figure 5 folder. This is then used to create a table showing the number of each deduced type of train as a percentage of the population of total train crossings. The 'Table_4' folder contains a spreadsheet in ODS format showing a comparison between the types of train that crossed Bridge IB5 as identified using B-WIM data and those identified using data from the a historic archive of already-processed data derived from the Network Rail Open Data feeds. These data were derived using data from the OpenRail Data website at charlwoodhouse.co.uk, and are in turn derived from processing of the TD,TRUST,VSTP and SCHEDULE feeds from Network Rail. Data from July 2024 is compared. The 'Table_5' folder contains a spreadsheet in ODS format showing a list of trains deduced to have crossed Bridge HDB-19 in north London in July 2023. As with 'Table_4', these data are derived using data from the OpenRail Data website at charlwoodhouse.co.uk. The data presented in this dataset are a small subset of the open data and SHM-derived data available for the bridges, and are provided primarily to support the accompanying paper. In some cases, data are provided for the sole purpose of recreating the figures used in the paper, and are unlikely to be generally useful.