Task 2.2.2 of the PISa project was originally intended to include an analysis of existing junction video footage and in-depth case ride/drive through footage and report this analysis in Deliverable D11. In reality it was only possible to review video footage from in-depth accident cases where video footage either already existed or was recorded specifically for the PISa project. In the PISa analysis the video was used to clarify the circumstances of the crash as interpreted by the review group from the case summary and supporting information. It was also possible to use the video to verify some of the variables recorded in the case information and in some cases, make general estimates of distances and angles of approach. It was also possible to consider lines of sight of both the rider and driver. The video was also helpful in considering the alternative actions and outcomes that may have been possible in each crash situation. As a consequence the video analysis was used to enhance the understanding of each in-depth crash case. It was not the intention in Task 2.2.2 to develop a systematic analysis plan to be used for each case in order to determine crash variables which were not already known. However, as part of the review process those cases of particular interest and sufficient level of detail were identified for further consideration in Task 3.1.1. In total, 48 of the 60 in-depth cases had associated video footage which was included in the case review process. This video footage was either available with the original case material or collected as part of Task 2.2.2. In addition to the case and video analysis undertaken in Workpackage 2 it was intended that the case information would be made available to other Workpackages in PISa in Deliverable D15: Detailed case summaries and associated video footage. However, due to issues of confidentiality of the data, it was decided by the partners responsible for OTS data that the actual case materials should remain with the host organisations and be made available to other partners in PISa upon request. As a consequence, summary information is given in each of the tables to enable partners to identify cases of interest. As a consequence of these changes to the outputs of WP2 the deliverables 11 and 15 have been combined in this one report D11&15: Report summarising the in-depth accident case and video analysis. (Author/publisher)
Samenvatting