[1. Bruno, L., Parla, G., Celauro, C. (2012) Improved Traffic Signal Detection and Classification via Image Processing Algorithms. Procedia - Social and Behavioral Sciences (53), 811–821. https://doi.org/10.1016/j.sbspro.2012.09.93010.1016/j.sbspro.2012.09.930]Open DOISearch in Google Scholar
[2. De La Escalera, A., Armingol, J. M. A., Mata, M. (2003) Traffic sign recognition and analysis for intelligent vehicles. Image and vision computing, 21, 247–258. - https://doi.org/10.1016/S0262-8856(02)00156-710.1016/S0262-8856(02)00156-7]Open DOISearch in Google Scholar
[3. Delfino, A., Galaverna, M. (2003) Mobile and fixed block: Carrying capacity analysis. Ingegneria Ferroviaria 6: 555-565.]Search in Google Scholar
[4. Directive 2004/49/EC, Commission Directive 2009/149/EC and Regulation (EC) No 91/2003.]Search in Google Scholar
[1. ERA. Railway Safety Performance in the European Union. Biennial Report. European Union Agency for railway, 2016.]Search in Google Scholar
[2. Freeman, H. (1961) On the encoding of arbitrary geometric configurations. Ire Trans. Electron. Comput. EC-10, 260-268.10.1109/TEC.1961.5219197]Search in Google Scholar
[3. Freeman, H. (1974) Computer Processing of Line Drawing Images. ACM Computing Surveys. 6(1), 57-97. https://doi.org/10.1109/TEC.1961.521919710.1109/TEC.1961.5219197]Open DOISearch in Google Scholar
[4. Guerrieri, M., Parla, G., Corriere, F. (2013) A new methodology to estimate deformations of longitudinal safety barrier. ARPN Journal of Engineering and Applied Sciences, 8(9), 763-769.]Search in Google Scholar
[5. Guerrieri, M., Parla, G., Ticali, D. (2012) A theoretical and experimental approach to reconstructing the transverse profile of worn-out rails. Ingegneria Ferroviaria 67(1), 23-37.10.1037/e527372013-012]Search in Google Scholar
[6. Lee, D., Yoon, H., Chung, M., Kim, J. (2014) Robust Sign Recognition System at Subway Stations Using Verification Knowledge. ETRI Journal, 36(5), 696-703. -https://doi.org/10.4218/etrij.14.2214.000710.4218/etrij.14.2214.0007]Open DOISearch in Google Scholar
[7. Lewis, J.P. (1995) Fast Template Matching. Vision Interface. Canadian Image Processing and Pattern Recognition Society, 15-19, pp. 120-123.]Search in Google Scholar
[8. Marmo, R., Lombardi, L., Gagliardi, N. (2006) Railway Sign Detection and Classification. Proceedings of the IEEE ITSC 2006, Toronto, Canada, September 17-20, 1358-1363.10.1109/ITSC.2006.1707412]Search in Google Scholar
[9. Moutakki, Z., Mohamed Ouloul, I., Afdel, K., Amghar, A. (2018) Real-time system based on feature extraction for vehicle detection and classification. Transport and Telecommunication, 19(2), 93–102.10.2478/ttj-2018-0008]Search in Google Scholar
[10. Nagy, E., Csiszár, C. (2015) Analysis of delay causes in Railway passenger transportation. Periodica Polytechnica Transportation Engineering, 43(2), 73-80. https://doi.org/10.3311/PPtr.753910.3311/PPtr.7539]Search in Google Scholar
[11. Nassu, B.T., Ukai, M. (2010) Automatic Recognition of Railway Signs Using SIFT Features. IEEE Intelligent Vehicles Symposium, University of California, San Diego, CA, USA, June 21-24, 348-354. https://doi.org/10.1109/IVS.2010.554812710.1109/IVS.2010.5548127]Open DOISearch in Google Scholar
[12. Otsu, N. (1979) A threshold selection method from grey-level histograms. IEEE Transactions on Systems, Man, and Cybernetics, 9(1), 62 - 66.10.1109/TSMC.1979.4310076]Search in Google Scholar
[13. Papacostas, C.S., Prevedouro, P.D. (2001) Transportation Engineering and Planning (3rd Edition), Prentice Hall.]Search in Google Scholar
[14. Sostarics, G., Zobory, I. (1981) Railway brake-gear design method by means of probability theory. Periodica Polytechnica Transportation Engineering, 9(2), 119-131.]Search in Google Scholar
[15. Vitabile, S., Pollacia, G., Pilato, G., Sorbello, F. (2001) Road signs recognition using a dynamic pixel aggregation technique in the HSV color space. Proceedings of the 11th International Conference on image analysis and processing, Palermo, Italy, 572 - 577.10.1109/ICIAP.2001.957071]Search in Google Scholar
[16. Vuchic, V.R. (2007) Urban Transit Systems and Technology, John Wiley & Sons.10.1002/9780470168066]Search in Google Scholar