抄録
Comfort is one of the performance factors which affects the satisfaction of road users. In this study, we present an evaluation method based on multiple alternative plans for the improvement of road comfort at the maintenance and management stage. One alternative is to elevate vehicle running performance by improving the road surface with the mill-and-overlay method. Another alternative is to increase comfort by improving the landscape elements of the road. By successfully combining these two measures, it is possible to propose an effective repair plan. This study targets the Hakone Turnpike and evaluates the relationship between landscape elements and comfort and flatness as measured by IRI. Next, it was verified whether the target performance line can be secured using biaxial evaluation of landscape elements and flatness. The costs for improving the performance of sections not reaching the target were also compared.
