Understanding real-world brake activity: A key to assessing non-tailpipe emission sources for sustainable transportation and communities

Electrification is considered a promising solution to environmental sustainability, due to the removal of tailpipe emissions (during operation) from the transportation sector. However, this would not have too much effect on those non-tailpipe particulate emissions. In addition, brake and tire wear particles are composed of various metals, rubber compounds, and organics which includes adhesives and have potential higher risks on the community health effects. In this study, the research team proposes to: 1) measure real-world brake activities of a large volume of vehicles traversing major roadway segments (e.g., near signalized intersections) by leveraging advanced roadside sensing technologies, e.g., Light Detection And Ranging and/or high-definition camera, as well as deep learning-based computer vision algorithms; and 2) construct the real-world brake activity database and supplement for the non-tailpipe emissions inventory. It is expected t..., , , # Data from: Understanding real-world brake activity: A key to assessing non-tailpipe emission sources for sustainable transportation and communities

[https://doi.org/10.5061/dryad.41ns1rnrp](https://doi.org/10.5061/dryad.41ns1rnrp)

## Description of the data and file structure

This dataset compiles multi-sensor data collected to analyze vehicle braking events and associated non-tailpipe particulate matter emissions at urban intersections. Data sources include GPS logs, LiDAR point clouds, video recordings, and onboard vehicle sensors. The dataset supports research on vehicle dynamics, braking behavior analysis, trajectory refinement, and emission estimation.

### Files and variables

#### File: tableview\_250127\_050942.csv

**Description:** 

##### Variables

* Index: Sequential index of the data points.
* Lat (degrees): Latitude of the vehicle's location.
* Lon (degrees): Longitude of the vehicle's location.
* CoG (degrees): Course over ground (direction of movement).
* SoG (m/s):...,