Special O Lym Pics C Oaching Q Uick Start G Uide
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
A Network-Based Approach for the Study of Criticalities in Ski-Resorts
International Snow Science Workshop Grenoble – Chamonix Mont-Blanc - 2013 A network-based approach for the study of criticalities in ski-resorts Valerio De Biagi1,2*, Barbara Frigo1,2 and Bernardino Chiaia1,2 1 Dept. of Structural, Geotechnical and Building Engineering, Politecnico di Torino, ITALY 2Mountain Risk Research Team – MRR Team, Verrès (AO) – Italy ABSTRACT: The correct management of ski-resorts requires wide knowledge in mountain hazards, as well as a large experience. Usually ski-resorts cover a surface that encompasses more than one side of a mountain (or more than one valley); for this reason, the meteorological conditions may vary locally and rapid decisions have to be taken in order to ensure the safety of the skiers. Any intervention on the structure of the resort may entail cascade events and other critical situations. For example, a temporary closure of a lift may create large queues in other parts of the ski-area. In the same way, a closure of a ski-slope might engender overcrowding in other ski runs. All these situations are potential sources of risk. We propose an approach to the study of criticalities in ski-resorts by means of transportation network approaches based on the ability of the skiers and the grade of the ski run. An example is made on the Antagnod branch of MonteRosaSki resort. The effects of a sudden interruption of part of it, i.e., ski- slope closure or lift temporary interruption, are simulated. KEYWORDS: Ski-resort management, Graph theory, Criticalities. others (2005) made a statistics of the average 1 INTRODUCTION speeds of skiers in three different ski resorts in the US. -
Dynamics of Carving Runs in Alpine Skiing. II.Centrifugal Pendulum with a Retractable Leg
Dynamics of carving runs in alpine skiing. II.Centrifugal pendulum with a retractable leg. Serguei S. Komissarov Department of Applied Mathematics The University of Leeds Leeds, LS2 9JT, UK Abstract In this paper we present an advanced model of centrifugal pendulum where its length is allowed to vary during swinging. This modification accounts for flexion and extension of skier’s legs when turning. We focus entirely on the case where the pendulum leg shortens near the vertical position, which corresponds to the most popular technique for the transition between carving turns in ski racing, and study the effect of this action on the kinematics and dynamics of these turns. In partic- ular, we find that leg flexion on approach to the summit point is a very efficient way of preserving the contact between skis and snow. The up and down motion of the skier centre of mass can also have significant effect of the peak ground reaction force experienced by skiers, partic- ularly at high inclination angles. Minimisation of this motion allows a noticeable reduction of this force and hence of the risk of injury. We make a detailed comparison between the model and the results of a field study of slalom turns and find a very good agreement. This suggests that the pendulum model is a useful mathematical tool for analysing the dynamics of skiing. Keywords: alpine skiing, modelling, balance/stability, performance Introduction The skiing of expert skiers is characterised by smooth and rhythmic moves which are very reminiscent of a pendulum or metronome. This analogy invites mathematical modelling of skiing based on the pendulum action, which can be traced back to the pioneering work by Morawski (1973). -
Skiing & Snowboarding Safety
Center for Injury Research and Policy The Research Institute at Nationwide Children’s Hospital Skiing & Snowboarding Safety Skiing and snowboarding are great ways to spend time outdoors during the winter months. As with all sports, injuries are a risk when you ski or snowboard. Taking a few safety measures can help you have fun and be safe. Skiing & Snowboarding Injury Facts Skiing & Snowboarding Safety Tips • Bruises and broken bones are the most common • Always wear a helmet designed for skiing or types of skiing- and snowboarding injuries. snowboarding. • Snowboarders most commonly injure their wrist • Protect your skin and eyes from the sun and and arm. Skiers most commonly injure their wind. Apply sunscreen and wear ski goggles that knee, head or face. fit properly with a helmet. • Most ski and snowboarding injuries occur during • Make sure your boots fit properly and bindings a fall or a crash (usually into a tree). are adjusted correctly. • Traumatic brain injury is the leading cause of • Prepare for the weather. Wear layers of clothes serious injuries among skiers and snowboarders and a helmet liner, a hat or a headband. and is also the most common cause of death. • Do not ski or snowboard alone. • Follow all trail rules. • Stay on the designated trails. Recommended Equipment • Only go on trails that match your skill level. • Helmet designed for skiing and snowboarding • Take a lesson – even experienced skiers and • Goggles that fit over a helmet snowboarders can benefit from a review. • Properly fitted boots and bindings • Before using a ski lift, tow rope or carpet, make • Sunscreen sure you know how to get on, ride and get off • Wrist guards for snowboarders safely. -
Doppelmayr Recovery Concept the Heaviest Gondola Lift Ever Built by Doppelmayr New 10-Passenger Gondola Lift in Altenmarkt Ropew
February 2012 No. 186 • 37th Year In the Saalbach-Hinterglemm ski region, Doppelmayr has installed the 8-MGD Bernkogelbahn 1 and the 6-CLD-B-S Reiterkogel-Ost. (photo) Doppelmayr recovery concept The Silvretta Montafon ski region, one Two 3S lifts and one gondola lift have already been equipped. pp.2–3 of the biggest in the Alps, has received The heaviest gondola lift ever built by Doppelmayr a huge boost to its attractiveness with the … goes into operation on schedule in Montafon/Austria. p.6 consecutive gondola lifts “Hochalpila New 10-passenger gondola lift in Altenmarkt Bahn” (photo) and “Grasjoch Bahn”. The Radstadt/Altenmarkt ski circuit boosts its attractiveness. p.10 Ropeways aimed at stemming population drain Three municipalities in the Swiss canton of Fribourg coordinate their activities. p.14 Skiing in the Apennines Doppelmayr builds the first detachable lift in the Sibillini Mountains. p.16 Skiing gains importance in China Doppelmayr lifts in Genting Resort Secret Garden and Changbaishan. p.20 2 Doppelmayr/Garaventa Group Recovery concept: Subjectively and objectively safe Doppelmayr’s new ntil recently, the recovery concept reasonable time period in the event of recovery concept ensures had been installed on the 3S lifts operational malfunction of the lift. Evacu- in Sölden and Koblenz. Now the ation by rescue ropeway, for example, is that ropeway passengers U same approach has been adopted on no longer necessary; passengers are not can always be carried the new Grasjoch 8-passenger gondola required to leave the gondolas if the lift to the nearest station lift in Montafon, Austria. fails. -
Chronology of Selected Ski Lifts Notes for 2001 Exhibit, New England Ski Museum Jeff Leich
Chronology of Selected Ski Lifts Notes for 2001 Exhibit, New England Ski Museum Jeff Leich The following notes on ski lifts are intended to aid in the development of a Ski Museum exhibit. In many cases it is unclear from the sources referenced below exactly when a particular lift was installed or first operated. It is also probable that sources with data on certain early ski lifts was not located. It is therefore not possible to compare opening dates to determine which lift was "the first" of its kind to operate; rather, this chronology is intended to indicate the general sequence of the development of early ski lifts of the stated types. 1870 Eureka Mine ore tramway used to transport miners for skiing (Allen, 109, 203 note 22--Vallejo CA Sunday Times Herald, 12-13-1870). "For example, the ore bucket of the Plumas Eureka Mine at Johnsville (CA) was converted on Sundays into the world's first ski tow. It was operated by steam". (Gould, p 136 (ref to Vallejo CA Sunday Times Herald, 12-13-1870). 1896 Riblet Tramways Company of Spokane, WA begins designing mining tramways (Gilbert, p. 2). 1907 Sightseeing four-passenger gondola built in Silver Plume, CO; torn down for scrap metal about 1914 (Gilbert, p. 2). 1907 "Sled lifts had been employed on the slopes of Bodele in the Voralberg region of Austria as early as 1907" (Gilbert, p. 4). 1908 Haulback tows used in Europe as early as 1908 (Allen, 109, note 20 on pg 203, from patent application, March 16, 1908). 1910 "A tow to haul toboggans was ready for the Truckee CA carnival in 1910 and then was used later by skiers following the formation of the Truckee Ski Club in 1913". -
Section B (A Technical Understanding of Snowboarding)
B/01 Section b - A Technical Understanding of Snowboarding 6 In this chapter we will explore... How snowboarders can alter their path down the The Snowboard mountain by making turns of different shapes and sizes. Alongside this, we will look at the different Turn phases of the turn which are particularly useful Turn Size and Shape when communicating the sequence of events throughout a turn to your Turn phases students. We will also explain the variety of turn types that can be used and Turn types consider the forces that impact the turn. Turn forces CHAPTER 6 / THE SNOWBOARD TURN B/02 Turn Size and Shape Put simply, the longer the board spends in the fall line or the more gradually a rider applies movements, the larger the turn becomes. When we define the size of the turn we consider the length and radius of the arc: small, medium or large. The size of your turn will vary depending on terrain, snow conditions and the type of turn you choose to make. SMALL MEDIUM LARGE A rider’s rate of descent down the mountain is controlled mainly by the shape of their turns relative to the fall line. The shape of these turns can be described as open (unfinished) and closed (finished). A closed turn is where the rider completes the turn across the hill, steering the snowboard perpendicular to the fall line. This type of turn will easily allow the rider to control both their forward momentum and rate of descent. Closed turns are used on steeper pitches, or firmer snow conditions, to keep forward momentum down. -
Penguin Travel DMC-Bulgaria Address: 9 Orfej Str., 1421 Sofia, BULGARIA; Phone: +35924001050; E-Mail: [email protected] 1 Introduc
Autonomous Region of western China. In Day 7: Skiing, afternoon transfer to Introduction the South it links up with the Pamir Tashkent. Farewell dinner. The features distinguishing Mountains. Tian Shan means “celestial /breakfast, lunch, dinner/ Uzbekistan (Tian Shan) from other mountains”. The highest international centres of heli-skiing Day 8: Departure. (Canada, Himalayas, Alaska, New peak is Pik Pobedy (Victory Peak) which, Zeeland, Kyrgyzstan, Kazakhstan and at 7439 m or is also the highest point in Accommodation and food: We stay in others) are the following: stable sunny Kyrgyzstan. a 3* hotel (corresponding to the weather, deep powder snow, super - Tashkent is the capital of modern European comfortable temperature for skiing, Uzbekistan. The first information about and world’s best prices for 25-km Tashkent appeared in ancient chronicles standards), which is situated close to package. Just imagine that you're of the East in the 2-nd century BC. Today the picturesque shore of Charvak water standing in the middle of an Tashkent is a modern city with population reservoir. The hotel is also about 20 untouched powder-kissed paradise; of more than 2.5 million. After a disastrous min. by car from the closest village, you click in to your bindings, take a earthquake in 1966, the city was rebuilt to where you can go for shopping and fun. deep breath of pure mountain air and become one of the most beautiful The program includes a full board contemplate the majesty of your administrative, industrial and cultural accommodation. The helicopter base is surroundings. You push off and glide centres of Central Asia. -
Review of Ski Resort Operating Costs and Market Analysis Dissemination Public / Internal / Confidential Version, Date V3
PROSNOW Provision of a prediction system allowing for management and optimization of snow in Alpine ski resorts Document description WPs 2 Type Report Title Review of ski resort operating costs and market analysis Dissemination Public / Internal / Confidential Version, Date V3 Author(s) J. Cognard, H. François Reviewer(s) S. Bruyères, J. Köberl, S. Morin Related files Members attending or participating PROSNOW This project has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No730203 ................................................................................................................................................................................... 1 ABSTRACT ......................................................................................................................................................................... 3 INTRODUCTION ................................................................................................................................................................... 4 1. CONTEXT ................................................................................................................................................................. 7 1.1. Ski resort management practices between countries ................................................................................. 7 1.2. Investment dynamics ................................................................................................................................. -
Instructor Guide
INSTRUCTOR GUIDE Using the CASI Rider Improvement Program (RIP) The CASI Rider Improvement Program (RIP) has been developed with the goal of being a flexible, adaptable program that is suitable for group lessons, private lessons, or multi-week programs. Feel free to adapt the program to your specific needs regarding duration, number of sessions, etc. Each progress card in the program provides some standard Program Stages: information: Students will progress their skills through the following stages, Info: from 1 through 5. Following the completion of stage 5, they may Student name, date, resort info, instructor name and final com- choose either the Freestylin’ or Freeridin’ stage (or they may ments: choose to complete both!). • This area is useful in creating return lessons, as it ensures that your students have a record of your lesson with them. • Comments should be overall positive with suggestions for I. LITTLE RIPPERS A future practice and skills. II. LITTLE RIPPERS B Terrain: The areas of the mountain that students can expect to use in this III. LITTLE RIPPERS C stage. 1. BASICS Goals: • These are the technical outcomes that you will work 2. TURNING towards during your time in the particular stage of the program. 3. CRUISING • Note: Depending on your program format, each stage may range from 1 – 3 lessons. For some students it may be 4. SHREDDING realistic to accomplish all of the goals in one lesson, but this will not be the norm. 5. RIPPING Skills – Technical: 6a. FREESTYLIN’ - and/or - 6b. FREERIDIN’ • These represent the technical points of the lesson that the instructor will be introducing and practicing with the student. -
2019 Conference Schedule
2019 Conference Schedule Tuesday, June 4, 2019 9:30-9:50 a.m. Introduction and Conference Welcome - Michael Reitzell, Ski California; Ron Cohen, Squaw Valley Alpine Meadows (Squaw Valley Conference Center) General Session 1 9:50-11:00 a.m. From Tragedy to Triumph: How One Child’s Loss Led to Paradigm Shift in Chairlift Operations - Mark Henderson, Helen Chew, Dave Byrd and Mary Bozack (Squaw Valley Conference Center) 11:00 a.m.-12:30 p.m. Lunch Break (on your own) Classrooms Palisades A Palisades B Palisades C Alpenglow Base Camp Olympic House - Plaza Bar Funitel and Tram Village South Parking Structure Everything Lift Maintenance Employee Safety: OSHA Case Lift Operations Staffing & Needs To Know About Wire The Essentials of Lift Physics - Intro to PLC Based Motor Study of 3 Lift Incidents - Tom Department Structure Roundtable - Funitel and Tram Tours - Chris Woo, Breakouts Session 1 12:30-2:00 p.m. Ropes & Wire Rope Inspections - Joe Gmuender, Gmuender Controls - Ed Thompson, Scully, Safehold Special Risk; Dave Brandon Swartz, Heavenly Mountain Squaw Valley | Alpine Meadows Jorg Tonett, Wire Rope Service; Engineering Electramic LLC Byrd, NSAA Resort, Moderator Sven Winter, ROTEC Using Lift Surveillance to Managing Up: Using Influence to Quality Programming to Ensure Potpourri for $500 Alex - What Sheave Assembly Loads for Troubleshooting Tower Circuits - Advance Safety - Mary Bozack, Move Your Organization - Paul Success for Lift Maintenance Funitel and Tram Tours - Chris Woo, Breakouts Session 2 2:10-3:40 p.m. Inspectors and Peers Wish You Tower Rigging - Mike Stephenson, Daniel Pijuan, Mammoth Mountain MountainGuard; Jenna Prescott, Thallner, High Peaks Group; Ed Welding and Testing Operations - Squaw Valley | Alpine Meadows All Knew - Mike Lane, NSAA P.E., Stephenson Engineering, Ltd. -
The 4 Edges of the Snowboard
2016 ISSUE 1 The Official Publication of the PSIA-AASI Central Division FLEXING ;) SNOWBOARD UPDATE | WHAT’S NEW IN EDUCATION | SNOWSPORTS DIRECTORS UPDATE | THE 4 EDGES OF A SNOWBOARD The “4 Edges” of a Snowboard By Chuck Roberts n the 1980’s, when snowboarding at most ski resorts was in its infancy, snowboards resembled stiff planks with little flexibility. Figure 1 is a photo of a 1987 Burton V-Tail, a stiff board with a running surface that resembled a V-bottom fishing boat. It also Ihad a location for a skeg (similar to a surf board) to aid when riding in powder. It appeared to work well in powder but had its limitations on groomed slopes. Turning the board involved unweighting and upper body rotation, resulting in skidded turns on groomed slopes. There was virtually no way to torsionally flex the board (torsional flex refers to the design features of a snowboard which allows it to twist along the longitudinal axis of the board), Figure 2). Fig. 1 Fig. 2 Fig. 3 Fig. 4 1987 Burton V-Tail “Cruiser” Torsional flex 1991 K2 TX “Gyrator” Modern twin tip snowboard Snowboards evolved into more flexible structures in the Likewise, the leading toe edge of the snowboard is engaged in early 1990’s as shown by the Gyrator in Figure 3. There was Figure 5C and the trailing toe edge is engaged in Figure 5D. some torsional flexibility but the narrow stance (rider’s feet close together) made it difficult to torsionally flex the board. The torsional flexing of the board when turning is performed Despite this, snowboarders discovered that torsionally flexing with the lower body and virtually no upper body influence, the board aided in turning. -
Revival of the Steered Turn2
Revival of the Steered Turn Take your skiing to a new dimension with this forgotten method of turning I've been wanting to write this article for the website for some time now, but have been overwhelmed with producing the DVDs. Well, I finally have a moment and it really needs to be done, so here goes. A terrible injustice has been perpetrated on one of our friends. The reputation of a very valuable turning technique has been viciously denigrated, and it's time we set things right. This article is meant to launch a campaign to do just that. Back in the mid 1990's a new type of ski burst on the scene, and the face of skiing changed forever. It was then that the parabolic ski, now known as the shape ski, made its debut. I remember when it happened. Bode Miller had just won the Junior Nationals on a pair of off-the-rack recreational skis that had a strange new shape. Parents of my racers were coming up to me in droves to ask if these new skis were for real. "Should we buy them for junior?" My answer was a resounding, 'yes, they are for real, and they're going to change the sport. Everyone is going to be skiing on these things, courses are going to be set differently, and teaching models are going to change. You need to buy these skis for junior or he'll be left in the dust!' We'll jump forward a dozen years. My predictions came true.