Firstly, because a rail-string has no joints on the support and there is no difference between this and other sections of the track:.Secondly, coming closer to a support a rail deflection (with a relative value of about 1/2000) is smoothly reducing to a zero (at the moment when it over-passes a support). Moreover, as far as a string-rail under the module wheel is exposed to bending strain like a rigid beam the curvature radius of a string-rail under the impact of a concentrated load of a wheel will be equal to 300-500 m and more. Therefore, the motion of a module wheel wi 11 be smooth, without any shock both in the middle of a span and above the support.Thirdly, dynamic deflection of a track under the impact of wheels wi 11 be always observed behind the wheels at travel speeds above 200 km/h, therefore, no bending is observed 'when a wheel is passing over a support.40. Is it possible for a module to be blown off by tbe side wind?No, it is not.It was proved by the numerous wind-tunnel tests of a transportation module (at scale 1:5) carried out at the Central Scientific Research Institute named after Academician Krylov (St.Petersburg). For example, at the travel speed of 250 km/h and hurricane side wind (with 200 km/hour velocity) the tilting effort will be within the limit of 1OO kgs which for a module mass, for example, of 5,000 kg wi 11 not pose any risk of breaking a wheel-rail contact. Derailment implies not only the breakage of a wheel-rail contact but also the scale of the breakage to exceed the height of a suspension and a wheel flange.41. Is it possible for a 'vehicle to fly up at high travel speeds?This risk exists for a ground transportation vehicle (moving in the immediate vicinity of the ground surface) which results from screening effect. For example, tilting effort observed in a high-speed car is attributed to uneven flow—around in the clearance between the car bottom and the road and above the car. Therefore, anti-wing is installed. At 10-20 m height above the ground a screening effect disappears which is attributed to small vehicle dimensions.Furthermore, the body of a rail STD automobile is designed in such a way as to provide for symmetrical flow-around eliminating any cross or tilting efforts at any standard travel speeds.42. What if as a result of a vehicle failure it is unable to move further?In this case it will be taken in tow by a transportation module going ahead or behind which is equipped with a special automatic docking joint. Moreover, each module will be equipped -with the emergency electric drive supplied front the on-board accumulator therefore it will be able to reach the nearest stop or station independently moving at lower speed.As a last resort, a special evacuation module wi11 come to the emergency vehicle (along the same of counter track) to evacuate passengers and a failure module or if it is not possible to bring the emergency module to the ground. Specially equipped helicopters could be also used for emergency and rescue works along the route.Furthermore, evacuation of passengers could be facilitated with the use of special devices such as emergency hoses, extension (flexible) ladders, etc.
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