| Title |
Introduction of Transition Slopes to Improve Safety at Basement Parking Lot Entrances |
| Authors |
조영진(Cho, Young-Jin) ; 김효정(Kim, Hyo-Jeong) ; 안의순(Ahn, Euisoon) ; 이정원(Lee, jung-Won) |
| DOI |
https://doi.org/10.5659/JAIK.2025.41.4.51 |
| Keywords |
Parking lot; Entrance ramp; Longitudinal slope; Vertical curve; Parking ramp safety |
| Abstract |
This study proposes the introduction of a legal system for installing transition slopes at parking lot entrances to enhance pedestrian safety. In South Korea, where underground parking lots are prevalent, steep entrance ramps with gradients as high as 17% often restrict driver visibility, posing significant safety risks to pedestrians, particularly children and elderly individuals. Additionally, such ramps can cause vehicle damage, including the risk of fire in electric vehicles with battery packs located beneath the chassis. To address these issues, this study develops a guideline for transition slopes at parking lot ramps by conducting a literature review, case studies, and simulations. The simulations determined that a transition slope with a gradient of 8.5% or less and a minimum length of 3.2 meters at crest areas can significantly reduce blind spots, improving pedestrian safety. For vehicle safety, additional transition slopes of 1.7 meters at crest points and 2.0 meters at sag points are proposed to prevent vehicle damage. Furthermore, the study analyzed the social and economic impacts of implementing these guidelines. The results indicate that the proposed measures can significantly reduce pedestrian accidents and prevent vehicle damage, leading to safer and more efficient parking facilities. The findings underscore the need to establish systematic regulations for the design and installation of transition slopes at parking lot ramps. |