A Method to Correct the Mileage Error in Railway Track Geometry Data and Its Usage

摘要

With the novel technologies used in railway track status inspection, more and more track geometry data can be obtained, and they play a great role in ensuring track in good conditions. But, for the same section of the same track, there are also mileage errors between the track geometry data from the different inspection dates, so, in order to eliminate these inverse effects on the analysis results and avoid non-effective track maintenance works caused by the above mistaken data, a new optimization model to correct the mileage error of the track geometry data is put forward in this paper, and a automatic mileage error correction software based on the above model is developed at the same time. Based on a large amount of track geometry data from Shanghai-Nanjing railway line, the model verification and analysis are completed by the above software efficiently, the model is proved to be correct and effective.