Abstract
This study addresses concerns in shared space regarding low vehicle yield rates to pedestrians, safety risks, and challenges faced by vulnerable road users. We examine how the density of colored pavement lines influences drivers’ visual attention, specifically, fixation counts on pedestrians, in complex shared space scenes. Using an eye tracker (Tobii Pro Glasses 3, 100 Hz), we recorded the eye movements of 20 participants while they viewed 15 simulated driving videos with different marking designs. Results show that the optimal density correlates with road width: on 6-m roads, low-density markings are most effective; on 4.5-m roads, low density is effective only with a finer line width; and on 9-m roads, medium density works best, while increased line width can make low density equally effective. For pedestrians located on both sides of the road, stronger designs promote a balanced left–right distribution of fixations (all key results, p < 0.01). These findings suggest that optimizing colored marking parameters by road width can effectively guide drivers’ visual attention, providing evidence and practical design guidance for enhancing safety and traffic performance in shared spaces.
Keywords
Line density; Colored pavement lines; Shared space; Visual attention
DOI
https://doi.org/10.21606/iasdr.2025.61
Citation
Wu, Y.,and Yamamoto, S.(2025) Effects of Colored Pavement Line Density on Drivers' Visual Attention Patterns, in Chang, C.-Y., and Hsu, Y. (eds.), IASDR 2025: Design Next, 02-05 December, Taiwan. https://doi.org/10.21606/iasdr.2025.61
Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License
Conference Track
Track 3 - Design, Art & Technology
Effects of Colored Pavement Line Density on Drivers' Visual Attention Patterns
This study addresses concerns in shared space regarding low vehicle yield rates to pedestrians, safety risks, and challenges faced by vulnerable road users. We examine how the density of colored pavement lines influences drivers’ visual attention, specifically, fixation counts on pedestrians, in complex shared space scenes. Using an eye tracker (Tobii Pro Glasses 3, 100 Hz), we recorded the eye movements of 20 participants while they viewed 15 simulated driving videos with different marking designs. Results show that the optimal density correlates with road width: on 6-m roads, low-density markings are most effective; on 4.5-m roads, low density is effective only with a finer line width; and on 9-m roads, medium density works best, while increased line width can make low density equally effective. For pedestrians located on both sides of the road, stronger designs promote a balanced left–right distribution of fixations (all key results, p < 0.01). These findings suggest that optimizing colored marking parameters by road width can effectively guide drivers’ visual attention, providing evidence and practical design guidance for enhancing safety and traffic performance in shared spaces.