A NEW VENTILATION CONTROL FOR LONG ROAD TUNNEL

Application of fuzzy control to a road tunnel ventilation system

a new approach to credibility premium for zero-inflated poisson models for panel data

هدف اصلی از این تحقیق به دست آوردن و مقایسه حق بیمه باورمندی در مدل های شمارشی گزارش نشده برای داده های طولی می باشد. در این تحقیق حق بیمه های پبش گویی بر اساس توابع ضرر مربع خطا و نمایی محاسبه شده و با هم مقایسه می شود. تمایل به گرفتن پاداش و جایزه یکی از دلایل مهم برای گزارش ندادن تصادفات می باشد و افراد برای استفاده از تخفیف اغلب از گزارش تصادفات با هزینه پائین خودداری می کنند، در این تحقیق ...

A randomised cross-over cohort study of exposure to emissions from a road tunnel ventilation stack

BACKGROUND AND OBJECTIVE Road tunnels are increasingly important components of urban infrastructure. However, knowledge of their health impact on surrounding communities is limited. Our objective was to estimate the short-term respiratory health effects of exposure to emissions from a road tunnel ventilation stack. METHODS We conducted a randomised cross-over cohort study in 36 volunteers who...

Ventilation System Design for a Roadway Tunnel in Acapulco, México

There are several industrial methods for tunnel ventilation system design. In particular, for tunnels where axial flow fans are applicable, there are specialized computer programs that calculate the various pressure drops that consider wall friction and local losses due to signs and appurtenances, and considering vehicle emission factors based on up-hill or down-hill conditions, determine the n...

A Methodology for Life Safety Assessment in Road Tunnel Fires

This paper presents a methodology for evaluating life safety risks in road tunnel fires. The methodology considers three realistic fire scenarios, smoke spread, occupant evacuation, and reliability of fire suppression systems. The three fire scenarios represent three variations of fire growth rates. The road tunnel in this study is assumed to have two traffic tubes, a longitudinal ventilation s...