Lundi, 30 Janvier, 2023 - 15:45
The existing Machine Learning (ML) models for vibration-based damage assessments often use highly compressed features or are restricted to preprocessed signals with fixed durations and sampling rates. Additionally, the learning capacities of ML models and computational resources are limited, which restricts using raw signals as direct input. This report studies...
Lundi, 30 Janvier, 2023 - 15:45
The use of recycled concrete aggregates (RCA) as a replacement in new concrete has gained popularity worldwide as a method of reducing natural aggregate consumption. Many individual studies have been completed but little work has been done to analyze that work to make broad conclusions on RCA concrete mechanical properties. This report presents the development...
Lundi, 30 Janvier, 2023 - 15:30
This report documents a project designed to update the current Austroads road deterioration (RD) models using the long-term pavement performance and long-term pavement performance maintenance (LTPP/LTPPM) dataset and other data available, such as the traffic speed deflectometer (TSD) datasets, to improve these models' explanatory power. A proof-of-concept...
Lundi, 30 Janvier, 2023 - 15:30
This report documents a project designed to update the current Austroads road deterioration (RD) models using the long-term pavement performance and long-term pavement performance maintenance (LTPP/LTPPM) dataset and other data available, such as the traffic speed deflectometer (TSD) datasets, to improve these models' explanatory power. A proof-of-concept...
Lundi, 30 Janvier, 2023 - 15:30
This report documents a project designed to update the current Austroads road deterioration (RD) models using the long-term pavement performance and long-term pavement performance maintenance (LTPP/LTPPM) dataset and other data available, such as the traffic sped deflectometer (TSD) datasets, to improve these models' explanatory power. The cracking RD model...
Lundi, 30 Janvier, 2023 - 15:30
This report documents a project designed to update the current Austroads road deterioration (RD) models using the long-term pavement performance and long-term pavement performance maintenance (LTPP/LTPPM) dataset and other data available, such as the traffic speed deflectometer (TSD) datasets, to improve these models' explanatory power. A proof-of-concept...
Lundi, 23 Janvier, 2023 - 18:30
This safety research report examines the data collection and analysis challenges associated with two of the most common types of micromobility devices: electric scooters (e-scooters) and electric bicycles (e-bikes). To do this, the National Transportation Safety Board (NTSB) conducted a scientific literature review; held discussions with subject matter experts...
Lundi, 23 Janvier, 2023 - 18:30
This project developed a novel type of steel fiber to reinforce ultrahigh performance concrete (UHPC) and demonstrated its use in a recently built bridge. The new fiber has micrometer-scale striations on its surface to ensure highly effective anchorage into the UHPC matrix. The initial research effort focused on identifying the optimal striation configuration...
Lundi, 28 Novembre, 2022 - 18:45
Cost-benefit analyses assess the economics of a proposal by valuing (monetising) the costs and benefits to all members of society. However, CBAs sum across a wide range of people and don’t calculate inequities between groups or individuals, or who ultimately benefits from the project. The research was therefore carried out as the CBA appraisal approach...
Lundi, 28 Novembre, 2022 - 18:45
This project created tools, empowered by big data, that can identify in real-time the onset of congestion and the occurrence of incidents, for both freeways and arterials. The target audience is highway system managers. The tools all track travel rates and flows, in real-time, towatch for trends that suggest the system’s operating status is changing;...
Lundi, 26 Septembre, 2022 - 15:15
This project develops a comprehensive analytical framework for risk-based infrastructure asset management for both normal and extreme management conditions. We integrate analytical procedures for quantitative risk assessment, asset management, and economic impact analysis into a holistic methodological framework for comprehensive assessment of the benefit and...
Lundi, 26 Septembre, 2022 - 15:15
Snow and ice can easily accumulate on the lenses of signal lights and block light to the drivers of vehicles or locomotive engineers. Snow-clogged signal lights can decrease the performance of signalized intersections and railroads and may result in collisions in inclement weather conditions.
The TRB IDEA (Innovations Deserving Exploratory Analysis)...
