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A comparison and analysis of traditional methods and 3D printing for asphalt pavement maintenance led to an investigation of 3D asphalt printing technologies and equipment. As a result, the following suggestions and conclusions are proposed: 3D printing technology can increase the level of automation and standardization of pavement maintenance engineering, leading to effective improvements in worker safety, climate adaptability, repair accuracy, etc. For on-site repair of cracks and minor potholes, utilizing material extrusion technology a mobile 3D asphalt printing robot with a screw extrusion device can be used for accuracy and flexibility. For efficient repair of varying cracks, material jetting technology with a UAV equipped with a 3D printing air-feeding device can be employed.<\/jats:p>","DOI":"10.3390\/su15076237","type":"journal-article","created":{"date-parts":[[2023,4,5]],"date-time":"2023-04-05T02:11:41Z","timestamp":1680660701000},"page":"6237","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":18,"title":["A Review on the Application of 3D Printing Technology in Pavement Maintenance"],"prefix":"10.3390","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9230-1385","authenticated-orcid":false,"given":"Fangyuan","family":"Gong","sequence":"first","affiliation":[{"name":"School of Civil and Transportation Engineering, Hebei University of Technology, 5340 Xiping Road, Beichen District, Tianjin 300401, China"}]},{"given":"Xuejiao","family":"Cheng","sequence":"additional","affiliation":[{"name":"School of Civil and Transportation Engineering, Hebei University of Technology, 5340 Xiping Road, Beichen District, Tianjin 300401, China"}]},{"given":"Qinghua","family":"Wang","sequence":"additional","affiliation":[{"name":"Shandong Provincial Communications Planning and Design Institude Group Co., Ltd., Tianchen Road 2177, Jinan 250101, China"}]},{"given":"Yi","family":"Chen","sequence":"additional","affiliation":[{"name":"Road and Bridge School, Zhejiang Institute of Communications, No. 1515, Moganshan Road, Hangzhou 311112, China"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9103-6599","authenticated-orcid":false,"given":"Zhanping","family":"You","sequence":"additional","affiliation":[{"name":"Department Civil, Environmental, and Geospatial Engineering, Michigan Technological University, 1400 Townsend Drive, Houghton, MI 49931, USA"}]},{"given":"Yu","family":"Liu","sequence":"additional","affiliation":[{"name":"School of Highway, Chang\u2019an University, South Erhuan Middle Section, Xi\u2019an 710064, China"}]}],"member":"1968","published-online":{"date-parts":[[2023,4,5]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"602","DOI":"10.1016\/j.conbuildmat.2016.04.002","article-title":"A state-of-the-art review of parameters influencing measurement and modeling of skid resistance of asphalt pavements","volume":"114","author":"Kogbara","year":"2016","journal-title":"Constr. 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