A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
The effect of consistency in estimating link travel times: A data fusion approach
Although attention to data fusion has undergone rapid growth since the late 1980s, there are still relatively few applications in transportation management. Most research has based fusion weight estimation on the variance of each data source, assigning high weights to low variance data, implying that low variance means high accuracy. We propose a data fusion methodology where weights are assigned in a way data variance and sensor bias are minimized, but also consistency among data sources is maximized. The proposed methodology is flexible to work with multiple data sources, with different reliability and variability, and under different traffic conditions. The inclusion of consistency is shown to be statistically significant during special events and incidents and demonstrates its validity in successfully representing changes in traffic patterns by reasonably estimating their magnitude. Results from a case study that validate this method are shown.
The effect of consistency in estimating link travel times: A data fusion approach
Although attention to data fusion has undergone rapid growth since the late 1980s, there are still relatively few applications in transportation management. Most research has based fusion weight estimation on the variance of each data source, assigning high weights to low variance data, implying that low variance means high accuracy. We propose a data fusion methodology where weights are assigned in a way data variance and sensor bias are minimized, but also consistency among data sources is maximized. The proposed methodology is flexible to work with multiple data sources, with different reliability and variability, and under different traffic conditions. The inclusion of consistency is shown to be statistically significant during special events and incidents and demonstrates its validity in successfully representing changes in traffic patterns by reasonably estimating their magnitude. Results from a case study that validate this method are shown.
The effect of consistency in estimating link travel times: A data fusion approach
Murrugarra, Ruth (author) / Wallace, William (author) / Yushimito, Wilfredo (author)
Transportation Planning and Technology ; 44 ; 608-628
2021-08-18
21 pages
Article (Journal)
Electronic Resource
Unknown
Estimating link travel times for advanced traveller information systems
| British Library Conference Proceedings | 2000
Estimating urban travel times: A comparative study
| Elsevier | 1979
Estimating travel times from static map attributes
| IEEE | 2015
Modifying link travel times for improved route guidance
| British Library Conference Proceedings | 1995