Vehicle Conflict Identification Data from Jiqing Highway

Jingan Wu's dataset contains traffic conflict data from a 4-hour video study on the K283 lane-switch work zone of Jiqing Highway. It compares a new Frenet coordinate system method against traditional Cartesian methods for identifying rear-end and lane-change conflicts on curved roads. The data is stored in a 5.5 KB XLS file.

Use Cases

• Compare the number of serious rear-end conflicts identified by the Frenet coordinate method versus the traditional Cartesian method.
• Analyze vehicle deceleration patterns, specifically instances exceeding -4 m/s², within identified serious conflict events.
• Study the distribution of serious lane-change conflicts at specific road segments, such as junctions of curved and straight segments (e.g., segment 3/4/7/8/9).
• Validate a TTC-based conflict identification algorithm using vehicle state data (non-lane-change/lane-change) derived from video trajectories.

Strengths

• Data is derived from 4 hours of continuous, high-precision video collection on a specific highway work zone.
• The dataset provides a direct comparison of two distinct methodological approaches (Frenet vs. Cartesian) for conflict identification.
• Includes specific metrics like maximum vehicle deceleration during conflicts, with thresholds defined (e.g., -4/-1.5 m/s²).

Limitations

• The dataset is very small at 5.5 KB, indicating limited sample size and scope for robust statistical modeling.
• Geographic scope is restricted to a single 4-hour observation period on one specific highway segment in China.
• The underlying vehicle trajectory data and raw video are not included, limiting analysis to the processed conflict indicators.

Provenance

Source

Jingan Wu via figshare.

Collection Method

Generated from video data processed through a custom conflict identification program comparing Frenet and Cartesian coordinate methods.

Time Range

Covers a 4-hour observation period.

Freshness

Last updated on 2026-03-24.

Geography

K283 lane-switch work zone of the Jiqing Highway, China.