Earticle

본 연구는 도로용량편람에서 제시된 보행자도로의 용량 기준과 서비스수준 평가 방식이 실 제 보행환경과 보행자의 체감 혼잡도를 충분히 반영하지 못한다는 한계를 지적하고, 이를 개 선하기 위한 정량적·행태적 분석을 수행하였다. 특히 보행자의 심리적 거리 유지 특성을 고려 하여 실내·외 유형별 방해폭원을 정량화하고, 이를 유효보도폭 산정에 반영함으로써 보다 현 실적인 평가 기준을 제안하였다. 또한, 실측된 보행밀도와 보행교통류율 데이터를 바탕으로 회 귀모형을 구축하고, 이를 통해 기존보다 균형 잡힌 분포를 갖는 새로운 서비스수준 기준값을 도출하였다. 본 연구는 보행자 중심의 정교한 평가체계 마련과 더불어, 실제 보행 행태를 반영 한 설계 및 정책 수립의 방향을 제시하였다는 점에서 의의가 있다.

This study examined the limitations of the pedestrian walkway capacity and level of service (LOS) standards presented in the Highway Capacity Manual(2013), which tend to underrepresent the actual pedestrian environments. Based on field-observed data, the study quantified the shy distances that reflect the pedestrians’ psychological and behavioral tendencies and applied them to calculate the effective walkway width. Using this approach, the relationship between the pedestrian density and flow rate was analyzed, and a new set of LOS thresholds was proposed to reflect the real-world pedestrian flow characteristics. These findings highlight the feasibility of establishing a more precise, pedestrian-centered evaluation framework.

We studied experimentally and theoretically the vertical range of the confined electric field in the gap area of metamaterials, which was analyzed for various gap widths using terahertz time-domain spectroscopy. We measured the resonant frequency as a function of the thickness of poly(methyl methacrylate) in the range 0 to 3.2 μm to quantify the effective detection volumes. We found that the effective vertical range of the metamaterial is determined by the size of the gap width. The vertical range was found to decrease as the gap width of the metamaterial decreases, whereas the sensitivity is enhanced as the gap width decreases due to the highly concentrated electric field. Our experimental findings are in good agreement with the finite-difference time-domain simulation results. Finally, a numerical expression was obtained for the vertical range as a function of the gap width. This expression is expected to be very useful for optimizing the sensing efficiency.

In domestic, irregular walls such as T, L, H and Box shapes are considered as rectangular wall in the design of bearing wall apartment building. The strengths of walls, therefore, can be underestimated in case of using the current design process. Irregular walls are connected to each other as rigid joint so that part of the load can be resisted by the wall perpendicular to the load direction. This resistance can be caused by the effective width of perpendicular wall. This additional resistance by the perpendicular wall increases the strength of structural walls. The objective of this study is to evaluate the effective widths of flanged walls with different aspect ratios by using FEM analyses. the results from finite element method are compared with effective flange widths of some code provisions.