Research in Progress (RIP) https://rip.trb.org/ en-us Copyright © 2024. National Academy of Sciences. All rights reserved. http://blogs.law.harvard.edu/tech/rss tris-trb@nas.edu (Bill McLeod) tris-trb@nas.edu (Bill McLeod) Research in Progress (RIP) https://rip.trb.org/Images/PageHeader-wTitle-RIP.jpg https://rip.trb.org/ Seamless Vehicle and Bridge Monitoring for Transportation and Infrastructure Safety through a Wireless Internet-of-Things System – Phase I https://rip.trb.org/View/2341570 Mon, 19 Feb 2024 16:28:06 GMT https://rip.trb.org/View/2341570 Multiple-Sensor Weigh-In-Motion Systems to Enhance Data Accuracy and Reliability https://rip.trb.org/View/2286618 Mon, 06 Nov 2023 16:33:45 GMT https://rip.trb.org/View/2286618 Impact of WIM-based Direct Enforcement on the Service Life of Bridges https://rip.trb.org/View/2283487 Mon, 30 Oct 2023 22:45:43 GMT https://rip.trb.org/View/2283487 Investigation of Heavier-than-Expected Vehicle Weights Observed in the Vicinity of the Savannah Port Area and their Impact on Georgia’s Pavements and Bridges and Rate of Statewide Asset Degradation  https://rip.trb.org/View/2265649 Tue, 10 Oct 2023 12:24:39 GMT https://rip.trb.org/View/2265649 Energy consumption modeling of ships: towards a Door-to-Door (D2D) freight optimization https://rip.trb.org/View/2250695 Thu, 21 Sep 2023 14:11:15 GMT https://rip.trb.org/View/2250695 Route-based Freight Activity Metrics along the California State Highway System through a Pilot Multi Sensor Fusion System https://rip.trb.org/View/2250694 Thu, 21 Sep 2023 14:05:34 GMT https://rip.trb.org/View/2250694 Seismic Vulnerability Appraisal of Bridges in Kentucky for Compliance With FHWA's 2022 Specifications https://rip.trb.org/View/2244518 Thu, 14 Sep 2023 08:49:33 GMT https://rip.trb.org/View/2244518 Numerical Investigation of the Impact of Vertical Ground Motions on ABC Girder-to-Cap Connections in the Near-Field https://rip.trb.org/View/2221095 Fri, 28 Jul 2023 09:05:27 GMT https://rip.trb.org/View/2221095 Field Evaluation of Geophysical Applications for DOTD https://rip.trb.org/View/2111935 Mon, 06 Feb 2023 12:01:35 GMT https://rip.trb.org/View/2111935 Distributed strain sensing for pipeline safety against fault moving and landslide https://rip.trb.org/View/2085763 Fri, 16 Dec 2022 14:15:54 GMT https://rip.trb.org/View/2085763 Evaluation and Forecasting of Winter Road Conditions Associated with Blowing Snow for the Wyoming Highway System https://rip.trb.org/View/2055961 Thu, 03 Nov 2022 14:21:01 GMT https://rip.trb.org/View/2055961 Calibrating Ground Response Analyses beneath an Instrumented Bridge Using the I-15 Borehole Array and Ground Motions from the Magna Earthquake https://rip.trb.org/View/2044580 Mon, 17 Oct 2022 21:31:31 GMT https://rip.trb.org/View/2044580 Computational Fluid Dynamics Investigation of High Mast Illumination Poles: Influence of Light Fixtures https://rip.trb.org/View/2015220 Tue, 30 Aug 2022 16:04:29 GMT https://rip.trb.org/View/2015220 Low-Cost Sensing System for the Detection and Classification of Super Single Wheel Types and Distribution at the Network Level https://rip.trb.org/View/1992631 70 mph). After developing and testing the sensing system in the laboratory, verification tests will be conducted at a local parking lot and the university campus roads. Tests are also planned tests at Minnesota’s MnROAD facility to verify the validity of the detection using the controlled truck traffic. Work in Stage 2 will involve field evaluation and validation of the developed prototype system. The system will be installed in the field adjacent to several WIM locations. The application of the system will be demonstrated by analyzing field data to identify (a) the type and frequency of various super single tires (WBT) on a particular route, (b) lateral distribution of wheels in the wheel-path (i.e., wheel wander), and (c) axle load spectra for WBT vs. conventional dual tires. Stage 2 will also involve field data collection in Michigan and Minnesota to demonstrate the sensor system’s practicality and obtain feedback from state DOTs. At least 2-3 sites will be selected in these states, preferably adjacent to a WIM sensor, and the sensor system will be installed for data collection for at least 1-5 days in the outer lane. Data will be collected on the tire width, the exact number of tires per axle, and their position along the cable (position along the lane). The information will be used to classify tire types (i.e., WBT vs. dual); it will also precisely measure the wheel wander. The obtained data will be synthesized to show the usefulness of the developed sensor system by summarizing (a) differences in axle load spectra (ALS) -- single and tandem axles for dual tires and WBTs; (b) wheel wander distributions; and (c) vehicle classes compared from the existing WIM system and the sensor for each site. A life cycle cost analysis (LCCA) of the sensing system will be performed. The final report will provide all relevant data, methods, models, and conclusions, along with guidance on using the system to collect WBT data by state DOTs.]]> Mon, 11 Jul 2022 17:41:25 GMT https://rip.trb.org/View/1992631 Infrastructure Inspection During and After Unexpected Events - Phase V https://rip.trb.org/View/1945933 Sat, 30 Apr 2022 11:41:27 GMT https://rip.trb.org/View/1945933