{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,14]],"date-time":"2026-04-14T15:49:52Z","timestamp":1776181792936,"version":"3.50.1"},"reference-count":53,"publisher":"MDPI AG","issue":"2","license":[{"start":{"date-parts":[[2019,1,17]],"date-time":"2019-01-17T00:00:00Z","timestamp":1547683200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sensors"],"abstract":"<jats:p>In the last few years, increasing attention has been provided to research Vehicle-to-Pedestrian (V2P) communication systems. These V2P systems serve different purposes (safety or convenience) and cater to different Vulnerable Road User (VRU) groups. Also, these V2P systems employ different communication technologies, and use different mechanisms to interact with the users. An effective V2P system also needs to consider varying characteristics of different VRUs. These various elements may be considered as design parameters of the V2P system. In this paper, we discuss such elements and propose a design framework for the V2P system based on them. We also provide an extensive survey of existing V2P efforts for safety and convenience applications and their design considerations. We perform a case study that compares the different approaches of V2P safety system for different VRU groups under different pre-crash scenarios. Finally, we discuss a few technological challenges in integration of VRUs into V2X systems.<\/jats:p>","DOI":"10.3390\/s19020358","type":"journal-article","created":{"date-parts":[[2019,1,17]],"date-time":"2019-01-17T11:30:27Z","timestamp":1547724627000},"page":"358","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":123,"title":["Vehicle-to-Pedestrian Communication for Vulnerable Road Users: Survey, Design Considerations, and Challenges"],"prefix":"10.3390","volume":"19","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1304-5633","authenticated-orcid":false,"given":"Parag","family":"Sewalkar","sequence":"first","affiliation":[{"name":"Communication Networks Group, Technical University of Ilmenau, 98693 Ilmenau, Germany"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7867-9680","authenticated-orcid":false,"given":"Jochen","family":"Seitz","sequence":"additional","affiliation":[{"name":"Communication Networks Group, Technical University of Ilmenau, 98693 Ilmenau, Germany"}]}],"member":"1968","published-online":{"date-parts":[[2019,1,17]]},"reference":[{"key":"ref_1","unstructured":"IRTAD (2014). Road Safety Annual Report 2014 Summary, International Traffic Safety Data and Analysis Group (IRTAD). Technical Report."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"1163","DOI":"10.1109\/TMTT.2015.2405913","article-title":"A 5.9-GHz Fully Integrated GaN Frontend Design With Physics-Based RF Compact Model","volume":"63","author":"Choi","year":"2015","journal-title":"IEEE Trans. Microw. Theory Tech."},{"key":"ref_3","doi-asserted-by":"crossref","unstructured":"Wu, X., Miucic, R., Yang, S., Al-Stouhi, S., Misener, J., Bai, S., and Chan, W. (2014, January 14\u201317). Cars Talk to Phones: A DSRC Based Vehicle-Pedestrian Safety System. Proceedings of the 80th Vehicular Technology Conference (VTC Fall), Vancouver, BC, Canada.","DOI":"10.1109\/VTCFall.2014.6965898"},{"key":"ref_4","doi-asserted-by":"crossref","unstructured":"Anaya, J.J., Merdrignac, P., Shagdar, O., Nashashibi, F., and Naranjo, J.E. (2014, January 8\u201311). Vehicle to Pedestrian Communications for Protection of Vulnerable Road Users. Proceedings of the Intelligent Vehicles Symposium (IV), Dearborn, MI, USA.","DOI":"10.1109\/IVS.2014.6856553"},{"key":"ref_5","unstructured":"Sugimoto, C., Nakamura, Y., and Hashimoto, T. (2008, January 7\u20139). Prototype of pedestrian-to-vehicle communication system for the prevention of pedestrian accidents using both 3G and WLAN communication. Proceedings of the 3rd International Symposium on Wireless Pervasive Computing, Santorini, Greece."},{"key":"ref_6","doi-asserted-by":"crossref","unstructured":"Tang, S., Saito, K., and Obana, S. (2015, January 5\u20137). Transmission Control for Reliable Pedestrian-to-Vehicle Communication by Using Context of Pedestrians. Proceedings of the IEEE International Conference on Vehicular Electronics and Safety, Yokohama, Japan.","DOI":"10.1109\/ICVES.2015.7396891"},{"key":"ref_7","doi-asserted-by":"crossref","unstructured":"Liu, N., Liu, M., Cao, J., Chen, G., and Lou, W. (2010, January 21\u201325). When Transportation Meets Communication: V2P over VANETs. Proceedings of the 30th International Conference on Distributed Computing Systems (ICDCS), Genova, Italy.","DOI":"10.1109\/ICDCS.2010.83"},{"key":"ref_8","doi-asserted-by":"crossref","first-page":"1243","DOI":"10.1109\/TITS.2015.2502142","article-title":"RedEye: Preventing Collisions Caused by Red-Light-Running Scooters With Smartphones","volume":"17","author":"Huang","year":"2016","journal-title":"IEEE Trans. Intell. Transp. Syst."},{"key":"ref_9","doi-asserted-by":"crossref","unstructured":"Fujikami, S., Sumi, T., Yagiu, R., and Nagai, Y. (2015, January 9\u201312). Fast Device Discovery for Vehicle-to-Pedestrian Communication using Wireless LAN. Proceedings of the 12th Annual IEEE Consumer Communications and Networking Conference (CCNC), Las Vegas, NV, USA.","DOI":"10.1109\/CCNC.2015.7157943"},{"key":"ref_10","unstructured":"VRUITS (2019, January 04). VRUITS Project, Improving the Safety and Mobility of Vulnerable Road Users through ITS Applications. Available online: https:\/\/cordis.europa.eu\/project\/rcn\/186986\/factsheet\/en."},{"key":"ref_11","unstructured":"InDev (2019, January 04). InDev Project, In-Depth Understanding of Accident Causation for Vulnerable Road Users. Available online: https:\/\/www.indev-project.eu."},{"key":"ref_12","unstructured":"XCYCLE Project (2019, January 04). XCYCLE. Available online: http:\/\/www.xcycle-h2020.eu\/."},{"key":"ref_13","unstructured":"Prospect Project, Proactive Safety for Pedestrian and Cyclists (2019, January 04). Prospect Project. Available online: http:\/\/www.prospect-project.eu\/."},{"key":"ref_14","doi-asserted-by":"crossref","unstructured":"Sewalkar, P., Krug, S., and Seitz, J. (2017, January 6\u20138). Towards 802.11p-based Vehicle-to-Pedestrian Communication for Crash Prevention Systems. Proceedings of the 9th International Congress on Ultra Modern Telecommunications and Control Systems, Munich, Germany.","DOI":"10.1109\/ICUMT.2017.8255154"},{"key":"ref_15","doi-asserted-by":"crossref","unstructured":"Dhondge, K., Song, S., Choi, B.Y., and Park, H. (2014, January 18\u201321). WiFiHonk: Smartphone-based Beacon Stuffed WiFi Car2X-Communication System for Vulnerable Road User Safety. Proceedings of the IEEE 79th Vehicular Technology Conference, Seoul, Korea.","DOI":"10.1109\/VTCSpring.2014.7023146"},{"key":"ref_16","unstructured":"Bhargava, B., Angin, P., and Duan, L. (2012, January 12\u201314). A Mobile-Cloud Pedestrian Crossing Guide for the Blind. Proceedings of the International Conference on Advances in Computing & Communication, Odisha, India."},{"key":"ref_17","doi-asserted-by":"crossref","unstructured":"Engel, S. (2013, January 17\u201318). Car2Pedestrian: Protection of vulnerable road users using smartphones. Proceedings of the 17th International Forum on Advanced Microsystems for Automotive Applications, Berlin, Germany.","DOI":"10.1007\/978-3-319-00476-1_4"},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"1845","DOI":"10.1007\/s11277-015-3160-1","article-title":"An Energy Efficient Vehicle to Pedestrian Communication Method for Safety Applications","volume":"86","author":"Lee","year":"2016","journal-title":"Wirel. Pers. Commun."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"70","DOI":"10.1109\/MVT.2009.935536","article-title":"CAR-2-X and Pedestrian Safety","volume":"5","author":"David","year":"2010","journal-title":"Veh. Technol. Mag."},{"key":"ref_20","doi-asserted-by":"crossref","first-page":"45","DOI":"10.1109\/MITS.2016.2573338","article-title":"Cloud-Based Pedestrian Road-Safety with Situation- Adaptive Energy-Efficient Communication","volume":"8","author":"Bagheri","year":"2016","journal-title":"IEEE Intell. Transp. Syst. Mag."},{"key":"ref_21","doi-asserted-by":"crossref","unstructured":"Lewandowski, A., Boecker, S., Koester, V., and Wietfeld, C. (2013, January 2\u20133). Design and Performance Analysis of an IEEE 802.15.4 V2P Pedestrian Protection System. Proceedings of the 5th International Symposium on Wireless Vehicular Communications, Dresden, Germany.","DOI":"10.1109\/wivec.2013.6698232"},{"key":"ref_22","unstructured":"GM Corporate Newsroom (2018, July 02). GM Developing Wireless Pedestrian Detection Technology. Available online: http:\/\/media.gm.com\/media\/us\/en\/gm\/news.detail.html\/content\/Pages\/news\/us\/en\/2012\/Jul\/0726_pedestrian.html."},{"key":"ref_23","doi-asserted-by":"crossref","unstructured":"Liu, Z., Liu, Z., Meng, Z., Yang, X., Pu, L., and Zhang, L. (2016). Implementation and performance measurement of a V2X communication system for vehicle and pedestrian safety. Int. J. Distrib. Sens. Netw., 12.","DOI":"10.1177\/1550147716671267"},{"key":"ref_24","doi-asserted-by":"crossref","unstructured":"Hussein, A., Garcia, F., Armingol, J.M., and Olaverri-Monreal, C. (2016, January 1\u20134). P2V and V2P Communication for Pedestrian Warning on the basis of Autonomous Vehicles. Proceedings of the IEEE 19th International Conference on Intelligent Transportation Systems (ITSC), Rio de Janeiro, Brazil.","DOI":"10.1109\/ITSC.2016.7795885"},{"key":"ref_25","doi-asserted-by":"crossref","unstructured":"Liu, Z., Pu, L., Meng, Z., Yang, X., Zhu, K., and Zhang, L. (2015, January 19\u201323). POFS: A Novel Pedestrian-oriented Forewarning System for Vulnerable Pedestrian Safety. Proceedings of the International Conference on Connected Vehicles and Expo (ICCVE), Shenzhen, China.","DOI":"10.1109\/ICCVE.2015.63"},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"62","DOI":"10.1109\/MITS.2017.2743201","article-title":"Implementation and Evaluation of a Cooperative Vehicle-to-Pedestrian Safety Application","volume":"9","author":"Mahjoub","year":"2017","journal-title":"IEEE Intell. Transp. Syst. Mag."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"39","DOI":"10.5194\/ars-10-39-2012","article-title":"A cooperative transponder system for improved traffic safety, localizing road users in the 5 GHz band","volume":"10","author":"Schaffer","year":"2012","journal-title":"Adv. Radio Sci."},{"key":"ref_28","unstructured":"Nagai, M., Nakaoka, K., and Doi, Y. (November, January 29). Pedestrian-to-vehicle Communication Access Method and Field Test Results. Proceedings of the International Symposium on Antennas and Propagation (ISAP), Nagoys, Japan."},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"4564","DOI":"10.1109\/TVT.2016.2598786","article-title":"WiSafe: Wi-Fi and Pedestrian Collision and Avoidance System","volume":"66","author":"Ho","year":"2017","journal-title":"IEEE Trans. Veh. Technol."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"2086","DOI":"10.1109\/TITS.2017.2743709","article-title":"Three-Phases Smartphone-Based Warning System to Protect Vulnerable Road Users Under Fuzzy Conditions","volume":"19","author":"Zadeh","year":"2018","journal-title":"IEEE Trans. Intell. Trans. Syst."},{"key":"ref_31","doi-asserted-by":"crossref","unstructured":"Lin, C.H., Chen, Y.T., Chen, J.J., Shih, W.C., and Chen, W.T. (2016, January 18\u201321). pSafety: A Collision Prevention System for Pedestrians Using Smartphone. Proceedings of the 84th Vehicular Technology Conference (VTC-Fall), Montreal, QC, Canada.","DOI":"10.1109\/VTCFall.2016.7881183"},{"key":"ref_32","doi-asserted-by":"crossref","unstructured":"Artail, H., Khalifeh, K., and Yahfoufi, M. (2017, January 26\u201330). Avoiding Car-Pedestrian Collisions Using a VANET to Cellular Communication Framework. Proceedings of the 13th International Wireless Communications and Mobile Computing Conference, Valencia, Spain.","DOI":"10.1109\/IWCMC.2017.7986329"},{"key":"ref_33","doi-asserted-by":"crossref","unstructured":"Nakanishi, Y., Yamaguchi, R., Fujimoto, K., Wada, T., and Okada, H. (2010, January 7\u201313). A New Collision Judgment Algorithm for Pedestrian-Vehicular Collision Avoidance Support System (P-VCASS) in Advanced ITS. Proceedings of the 6th International Conference on Networking and Services, Cancun, Mexico.","DOI":"10.1109\/ICNS.2010.61"},{"key":"ref_34","doi-asserted-by":"crossref","unstructured":"Li, C.Y., Salinas, G., Huang, P.H., Tu, G.H., Hsu, G.H., and Hsieh, T.Y. (2018, January 20\u201324). V2PSense: Enabling Cellular-based V2P Collision Warning Service Through Mobile Sensing. Proceedings of the IEEE International Conference on Communications (ICC), Kansas City, MO, USA.","DOI":"10.1109\/ICC.2018.8422981"},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"1740","DOI":"10.1109\/TITS.2016.2627014","article-title":"Fusion of Perception and V2P Communication Systems for the Safety of Vulnerable Road Users","volume":"18","author":"Merdrignac","year":"2017","journal-title":"IEEE Trans. Intell. Transp. Syst."},{"key":"ref_36","unstructured":"Kwakkernaat, M., Ophelders, F., Vissers, J., Willemsen, D., and Sukumar, P. (2014, January 2\u20136). Cooperative Automated Emergency Braking For Improved Safety Beyond Sensor Line-Of-Sight And Field-Of-View. Proceedings of the FISITA 2014 World Automotive Congress, Maastricht, The Netherlands."},{"key":"ref_37","doi-asserted-by":"crossref","unstructured":"Thielen, D., Lorenz, T., Hannibal, M., Koster, F., and Plaettner, J. (2012, January 16\u201319). A Feasibility Study on a Cooperative Safety Application for Cyclists crossing Intersections. Proceedings of the 15th International IEEE Conference on Intelligent Transportation Systems, Anchorage, AK, USA.","DOI":"10.1109\/ITSC.2012.6338601"},{"key":"ref_38","doi-asserted-by":"crossref","first-page":"18480","DOI":"10.3390\/s150818480","article-title":"V-Alert: Description and Validation of a Vulnerable Road User Alert System in the Framework of a Smart City","volume":"15","author":"Perez","year":"2015","journal-title":"Sensors"},{"key":"ref_39","doi-asserted-by":"crossref","unstructured":"Anaya, J.J., Talavera, E., Gim\u00e9nez, D., G\u00f3mez, N., Jim\u00e9nez, F., and Naranjo, J.E. (2015, January 15\u201318). Vulnerable Road Users Detection using V2X Communications. Proceedings of the 18th International Conference on Intelligent Transportation Systems, Las Palmas, Spain.","DOI":"10.1109\/ITSC.2015.26"},{"key":"ref_40","doi-asserted-by":"crossref","unstructured":"Tal, I., and Muntean, G.M. (2013, January 9\u201313). V2X Communication-based Power Saving Strategy for Electric Bicycles. Proceedings of the Globecom Workshop\u2014Vehicular Network Evolution, Atlanta, GA, USA.","DOI":"10.1109\/GLOCOMW.2013.6825180"},{"key":"ref_41","unstructured":"Lu, Z.Q., Feng, Y., Yang, J., and Zheng, X.Q. (2014, January 26\u201328). An Improved Infrastructure Assisted V2P Protocol for VANETs. Proceedings of the 10th International Conference on Wireless Communications, Networking and Mobile Computing (WiCOM), Beijing, China."},{"key":"ref_42","unstructured":"TIMON (2018, July 02). Enhanced Real Time Services for an Optimised Multimodal Mobility Relying on Cooperative Networks and Open Data. Available online: https:\/\/www.timon-project.eu."},{"key":"ref_43","unstructured":"Carpenter, M.G., Feldmann, M., Moury, M.T., Skvarce, J.R., Struck, M., Zwicky, T.D., and Kiger, S.M. (2013). Objective Tests and for and Forward-Looking Pedestrian and Crash Avoidance\/Mitigation\u2014Systems Annual Report, Technical Report DOT HS 811 793."},{"key":"ref_44","unstructured":"Swanson, E.D., Yanagisawa, M., Najm, W., Foderaro, F., and Azeredo, P. (2016). Crash Avoidance Needs and Countermeasure Profiles for Safety Applications Based on Light-Vehicle-to-Pedestrian Communications, Technical Report."},{"key":"ref_45","unstructured":"Morris, A., Hancox, G., Martin, O., Bell, D., Johansson, C., Rosander, P., Scholliers, J., and Silla, A. (2013, January 20\u201321). Critical accident scenarios for cyclists and how they can be addressed through ITS solutions. Proceedings of the International Cycling Safety Conference, Helmond, The Netherlands."},{"key":"ref_46","unstructured":"USDOT (2018, January 16). NYC Connected Vehicle Project. Available online: https:\/\/www.cvp.nyc\/cv-safety-apps."},{"key":"ref_47","unstructured":"USDOT (2018, January 16). Connected Vehicles: Vehicle-to-Pedestrian Communication, Available online: http:\/\/www.its.dot.gov\/factsheets\/pdf\/CV_V2Pcomms.pdf."},{"key":"ref_48","unstructured":"ETSI (2019, January 16). 3GPP TS 22.185 V14.4.0 Service Requirements for V2X Services; Stage 1 (Release 14), 2018. Available online: www.3gpp.org\/DynaReport\/22185.htm\/."},{"key":"ref_49","doi-asserted-by":"crossref","unstructured":"Rostami, A., Cheng, B., Lu, H., Kenney, J.B., and Gruteser, M. (2016, January 3\u20137). Performance and Channel Load Evaluation for Contextual Pedestrian-to-Vehicle Transmissions. Proceedings of the First ACM International Workshop on Smart, Autonomous, and Connected Vehicular Systems and Services, New York, NY, USA.","DOI":"10.1145\/2980100.2980103"},{"key":"ref_50","unstructured":"(2018, July 02). OMNeT++ Network Simulation Framework. Available online: http:\/\/www.omnetpp.org\/."},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"3","DOI":"10.1109\/TMC.2010.133","article-title":"Bidirectionally Coupled Network and Road Traffic Simulation for Improved IVC Analysis","volume":"10","author":"Sommer","year":"2011","journal-title":"Trans. Mob. Comput."},{"key":"ref_52","first-page":"128","article-title":"Recent Development and Applications of SUMO\u2014Simulation of Urban MObility","volume":"5","author":"Krajzewicz","year":"2012","journal-title":"Int. J. Adv. Syst. Meas."},{"key":"ref_53","unstructured":"Broadcom Corporation (2018, February 02). Superaccurate GPS Chips Coming to Smartphones in 2018. Available online: https:\/\/spectrum.ieee.org\/tech-talk\/semiconductors\/design\/superaccurate-gps-chips-coming-to-smartphones-in-2018."}],"container-title":["Sensors"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/1424-8220\/19\/2\/358\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T12:26:41Z","timestamp":1760185601000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/1424-8220\/19\/2\/358"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,1,17]]},"references-count":53,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2019,1]]}},"alternative-id":["s19020358"],"URL":"https:\/\/doi.org\/10.3390\/s19020358","relation":{},"ISSN":["1424-8220"],"issn-type":[{"value":"1424-8220","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019,1,17]]}}}