• Performance Evaluation of the Image Total Station Astrogeodetic Positioning and Orientation System 

  Shi, Chunlin; Zhang, Chao; Chen, Shaojie; Du, Lan; Zhan, Yinhu; Li, Feizhan; Zhang, Xu; Fan, Haopeng; Fan, Chengxiao; Li, Jian; Sun, Hanyun; Zhou, Peiyuan (American Society of Civil Engineers, 2026)

  AbstractThe automatic astrogeodetic survey method based on total stations has emerged as the second near-Earth astrogeodetic technology after digital zenith cameras, offering high automation, precision, portability, and ...
• Accuracy Comparison of Elevation Data Sources for Road Grade Estimation 

  de Oliveira, Rafael H.; de Almeida Filho, Flávio G. V.; Mazzoni, Laura N. (American Society of Civil Engineers, 2026)

  AbstractThe quality of elevation data plays a pivotal role in various land transport activities, such as accessibility analyses, route optimization, and estimates of energy demand and gas emissions. This study evaluates ...
• Investigation of Multiscale Uncalibrated Phase Delay Characteristics and Their Impact Mechanisms on BDS and GNSS PPP-AR Positioning Performance 

  Xu, Qi; Zhu, Huizhong; Song, Chuanfeng; Pei, Xinning (American Society of Civil Engineers, 2026)

  AbstractThis work assesses the performance of uncalibrated phase delay (UPD) products at different scales in multi-Global Navigation Satellite System (GNSS) precise point positioning ambiguity resolution (PPP-AR). Two sets ...
• Texturing Historical Data into 3D Models: Parish Church of San Giorgio in Argenta, Italy 

  Pesci, Arianna; Teza, Giordano; Rossetti, Alessandra; Bondanelli, Michele (American Society of Civil Engineers, 2026)

  AbstractThis article presents a texture mapping procedure for transferring information from historical images, potentially dating back several decades, even to the late 19th century, onto a three-dimensional (3D) model ...
• Linear Variation of M2 Tide in the East and South China Seas 

  Ke, Hao; Huang, Chenhu; Wang, Jian; Ding, Tianhao; Hao, Weifeng (American Society of Civil Engineers, 2026)

  AbstractUnderstanding variations of tidal harmonic constants is important for ocean tidal model refinement, coastal disaster prevention, and marine resource development. Previous research mainly relied on long-term hourly ...
• Progressive Extraction of Railway Tracks via Fused Attention and Residual Mechanisms 

  Ning, Xiaojuan; Duan, Xingchao; Sun, Zeqian; Zhou, Wenming; Lv, Zhiyong (American Society of Civil Engineers, 2026)

  AbstractTo address the challenges associated with the large data volume, extensive distribution, and inherent complexity of railway data, as well as the difficulty in removing objects adjacent to the railway tracks, we ...
• Recreation of Horizontal Alignment Using Vehicle Trajectory 

  Cao, Dandan; Niu, Fan; Fu, Guozhi; Yao, Hui; Zhang, Jinxi; Zhang, Zhiqing (American Society of Civil Engineers, 2026)

  AbstractThe horizontal alignment geometric information is of critical concern in the road design and traffic safety analysis. The alignment parameter could be obtained from the image detection method or the curve fitting ...
• Improving the Accuracy of Subway Mobile Laser Scanning Point Clouds Based on Target Constraints 

  Liu, Hao; Wu, Hangbin; Yao, Lianbi; Yi, Kai; Xu, Zhengwen; Ding, Xiaobing; Yang, Kun (American Society of Civil Engineers, 2026)

  AbstractDue to the underground or enclosed nature of subway systems, satellite navigation signals are often difficult to receive. Without reliable signals, mobile measurement systems are prone to significant positioning ...
• Deformation Process Fusion Acquired by GNSS and SBAS-InSAR Based on a Spatiotemporal Kalman Filter 

  Wu, Qiong; Shi, Weiwei; Li, Hongqing; Qiu, Zhongjun; Jia, Junqian; Fan, Ruixue; Zhu, Chunyu; Zhao, Han; Lan, Meixuan (American Society of Civil Engineers, 2026)

  AbstractThis paper proposes a new method [the improved spatiotemporal random effect model (ISTRE)] based on the spatiotemporal Kalman filter model for fusing Global Navigation Satellite System (GNSS) and Interferometric ...
• Comparison of Virtual Curb Ramp Slope Assessment from Multiple Lidar Platforms 

  Ogbeta, Caleb Ohionije; Olsen, Michael J.; Che, Erzhuo (American Society of Civil Engineers, 2026)

  AbstractThe Americans with Disabilities Act (ADA) sets standards for accessibility in public spaces, including geometric requirements for curb ramps and sidewalks to ensure access for people with disabilities. Obtaining ...
• Investigating the Impact of Training Data Set Selection for Pole-Like Object Classification in Mobile Laser Scanning Data 

  Kenney, Kenneth K.; Che, Erzhuo (American Society of Civil Engineers, 2025)

  AbstractThe presence and functionality of traffic signs, traffic lights, and streetlamps are vital for ensuring road user safety and efficient traffic management. These devices typically are mounted on pole-like structures, ...
• An Outlier Detection Method for High-Speed Railway Bridge Pier Settlement Based on Multistrategy Whale Optimization Algorithm and Variational Mode Decomposition 

  Gong, Xunqiang; Zhi, Junhao; Wang, Hongyu; Lu, Tieding; Chen, Yanling (American Society of Civil Engineers, 2025)

  AbstractIn response to the situation that traditional outlier-detection methods have difficulty in fully exploiting the characteristics of the settlement data of high-speed railway bridge piers, leading to unsatisfactory ...
• Location-Specific Ensemble Kriging: New Approach for Local Hybrid Geoid–Quasigeoid Estimation 

  Thi Pham, Hoa; Awange, Joseph; Claessens, Sten; Kuhn, Michael (American Society of Civil Engineers, 2026)

  AbstractGeostatistical methods have been employed to develop local hybrid geoid models. However, prior studies often overlooked the issue of covariance/variogram nonstationarity, potentially leading to underfitting or ...
• Enhancing Real-Time Kinematic Positioning Precision in Large Height Variations: A Novel Periodic Term-Based Correction Method 

  Gao, Yaping; Li, Jiapeng; Han, Junqiang; Li, Peng (American Society of Civil Engineers, 2025)

  AbstractThe positioning accuracy of real-time kinematic (RTK) technology is closely related to the height differences between stations. When the height difference is large, the correlation between the tropospheric delay ...
• Novel Regularization Method of Adaptively Balanced L1 and L2 Norms with Bias Removal 

  Han, Jie; Zhang, Zhichao; Zheng, Shouzhu; Fu, Qing; Song, Wenping; Ding, Haiyong; Wang, Minghua; Huang, Weiguo (American Society of Civil Engineers, 2025)

  AbstractIn various inversions of geodesy, photogrammetry, and remote sensing, one with different measurement adjustment models frequently encounters ill-posed problems. Stable solutions are typically obtained by regularization, ...
• Improving TRANS4D’s Crustal Velocity Model for the Southeastern United States 

  Snay, Richard A.; Gillins, Daniel; Wang, Guoquan (American Society of Civil Engineers, 2025)

  AbstractThis paper introduces a new crustal velocity model for the southeastern United States. This model supplements other velocity models currently residing in the TRANS4D software. This new velocity model reveals ...
• Improved Density Clustering for Spacing Measurement of Irregular Rebar Mesh from 3D Point Clouds 

  Li, Fengling; Long, Zezhou; Hu, Hongwei; Gao, Kai (American Society of Civil Engineers, 2025)

  AbstractProper spacing of rebar mesh is essential for structural integrity and safety, but measuring the spacing performance in three-dimensional (3D) space can be complicated. Existing spacing verification either relies ...
• BDViSim: An Open-Source Web Application Platform for Visual Simulation of China’s BeiDou Navigation Satellite System 

  Lu, Liguo; Cai, Yulin; Wu, Tangting (American Society of Civil Engineers, 2025)

  AbstractAs an essential national space-time infrastructure, the BeiDou navigation satellite system (BDS) comprehensively empowers the Internet of Things and enhances the development of the digital economy. Due to prominent ...
• Vehicle-Mounted Rail Patrol Inspection Equipment Using a Combination of Line-Scan Cameras and Lasers 

  Zhang, Xu; Fan, Tingli; Mao, Qingzhou; Zhang, Yingcai (American Society of Civil Engineers, 2025)

  AbstractHigh-speed railways must maintain a high level of smoothness, stability, and reliability because these factors are directly linked to the safe operation of high-speed trains and the protection of people’s lives and ...
• Monitoring the Dynamic Vertical Clearance under the Laviolette Bridge on the St. Lawrence River 

  Corbin, Maxime; Cocard, Marc; Larouche, Christian; Bourgon, Stéphanie (American Society of Civil Engineers, 2025)

  AbstractInternationally, the size of vessels keeps increasing. This causes a problem for the merchant navy, as many obstacles can limit the passage of larger vessels. When a ship sets sail for the Port of Montreal, the ...

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