IP0044 - Investigation of evaluation indexes for severe snowstorm events (.pdf - 97KB)

In recent years, the cold snowy regions of Japan have occasionally seen incidents of vehicles becoming stuck in snow and roads being closed from severe snowstorms caused by rapidly developed low-pressure systems. Given the need to mitigate snowstorm-related disasters, it is important to clarify the frequency and regional characteristics of snowstorms, and to develop criteria for supporting traffic [...]

IP0048 - Simple method for evaluation of daily snowfall frequency (.pdf - 52KB)

The frequency of phenomena that cause natural hazards is an important factor in planning measures against those phenomena. In frequency analysis, probability distributions of extreme values are commonly used to ascertain the return period, but complex procedures such as parameter setting are necessary in order to fit the data to the probability distribution. On the other hand, it has long been known [...]

IP0067 - Optimum control of far-infrared melting heater for snowbank depth control (.pdf - 13KB)

The Shibahara Tunnel is located in a special heavy snowfall area in Japan where the natural snow depth sometimes exceeds 6 m. A fence with a height of 3.8 m is installed above the mouth of the Shibahara Tunnel to prevent snow accumulated on the slope from falling onto the road. When heavy snow falls, the snowbank depth exceeds the fence. 15 to 20 workers climb the slopes and manually remove the snow [...]

IP0017 - Avalanche Stabilization and Winter Maintenance for the Trans-Canada highway (.pdf - 184KB)

The Trans-Canada Highway (TCH) is the main east-west trans-mountain route between British Columbia and the rest of Canada and carries a significant volume of traffic. One of the most challenging sections lies through Rogers Pass, Glacier National Park, British Columbia. The mountainous terrain the highway traverses has a vertical relief up to 1,800m and side slopes of 60 degrees. Heavy snowfall [...]

IP0384 - Control especifico de aludes de nieve con afectación a la red de carreteras de Andorra, mediante análisis retrospectivos, geomorfológicos y modelación numérica de los diferentes corredores de avalanchas en el Principado de Andorra. (.pdf - 1.3MB)

En el transcurso de los siglos, tanto en el Pirineo (Andorra) como en muchas regiones de montaña, se han podido ver afectaciones en el territorio causadas por fuertes episodios de nevadas y consecuentemente de aludes de nieve, provocando daños en caminos, infraestructuras, edificios y ocasionalmente vidas humanas. Debido a la sucesión de episodios relacionados con las avalanchas de nieve en la [...]

IP0045 - GARANTIZAR LA SEGURIDAD DE LA CIRCULACIÓN EN LAS AUTOPISTAS FEDERALES DURANTE LAS FUERTES NEVADAS (.pdf - 15KB)

Practical experiences and analyses of the winter maintenance in Germany give reason to examine the current level of service according to the “performance specifications for road maintenance services on federal motorways" in case of heavy snowfall, in order to ensure traffic safety is guaranteed according to requirements. Depending on local conditions, the given circulation times of winter service [...]

IP0281 - GESTIÓN DE CATÁSTROFES Y COOPERACIÓN ENTRE LAS ORGANIZACIONES IMPLICADAS EN UNA NEVADA HISTÓRICA CON 2.100 VEHÍCULOS ATASCADOS EN LA AUTOPISTA KAN-ETSU (.pdf - 188KB)

Due to the largest 24-hour snowfall in observatory history, Kan-etsu expressway was enforced to close on December 2020. The expressway is one of the most important trunk route runs across Mainland Japan. Simultaneous stuck of many huge vehicles stuck triggered of this closure. Mainly started from two points, about max 2,100 vehicles were stuck in this accident. It took for 55 hours to clear all stuck [...]

IP0232 - La España despoblada y alejada de los tópicos; Vialidad Invernal en Castilla y León. (.pdf - 3.2MB)

La región o comunidad autónoma de Castilla y León (CyL), formada por nueve provincias, es la región más extensa de España (94.226 Km²) y la tercera del conjunto de la Unión Europea, superando en superficie a 17 de los 24 estados miembros. Limita con nueve comunidades autónomas y con Portugal. Sin embargo, su población es de tan sólo 2,408 millones, estando el 73% de su territorio residiendo [...]