Versine of curve 5 metres. Of course this method would be to determine D of the circular part. The relationship between radius and versine of a curve in various units is shown below: Sep 24, 2018 · According to the inferences, the line charts used for determining the vertical versine were created to demonstrate the proportional relationship with the grade difference and the curve length. 1 Safety 1. In the curve system, the sequence will be: Tangent, spiral, circular curve, spiral, tangent. 4) Formulas and graphs for According to the inferences, the line charts used for determining the vertical versine were created to demonstrate the proportional relationship with the grade difference and the curve length. 6 Versine and cant diagrams for reverse/ compound curve Shift 1. It also covers maintaining curved track, including inspection, ballast, gauge, realignment, and special considerations for points and crossings, bridges, and level crossings on curves. It is a necessary tool for railway works construction. 39, radius 615 m) from publication: Improvement of the railway track MARTIN'S FORMULA // VERSINE OF CURVE // Hello everyone, We upload a numerical of civil engineering with concept daily So for a numerical with concept daily subscribe the channel Thank you😊 # Curvature is inevitably provided on railway tracks to bypass obstacles, provide longer gradients, and pass lines through desirable locations. 2 Passenger discomfort Chapter I Revision questions The curve can be of as many degrees as there are centimetres or inches of the versine for the chord lengths given above. Mar 28, 2018 · Curve registers of groups ‘A’ and ‘B’ routes should also be provided with cumulative frequency diagrams for each curve to get a graphic idea about the condition of geometry of curve. Mar 1, 2025 · Understand the importance of curve realignment in railway tracks, reasons for slew, principles of realigning curves, service limits, string lining techniques, and step-by-step operations. The versine or versed sine is a trigonometric function found in some of the earliest trigonometric tables. Railroads found that by using a chord of 62 feet instead of 100 feet, the versine or offset would by 1 inch per degree. Curve Versine Calculation And Transection Length#curve#crossing#railwayjobThis vedio contains details about vrsine and transition curve. Use of Versine Remember versine, or, versed sine? The Radius of a Circle based on the Chord and Arc Height calculator computes the radius based on the chord length (L) and height (h). 68. DEGREE OF CURVE Maximum degree of curvature for B. 7 Computation of Feb 6, 2024 · The term versine is also sometimes used to describe deviations from straightness in an arbitrary planar curve, of which the above circle is a special case. 4 Minimum straight between reverse curves 1. G = 10° (Min, R=175m) Maximum degree of curvature for M. Curve Chord and Versine calculator » Curve Speed calculator » Nov 14, 2025 · The versine, also known as the "versed sine," is a little-used trigonometric function defined by versin (z) = 2sin^2 (1/2z) (1) = 1-cosz, (2) where sinz is the sine and cosz is the cosine. In order to facilitate the work of the worker to complete this job, a new line curve positive vector measuring box has been development. g. Cancel anytime. 1 Continuous change in direction 1. Maximum Degree of a Curve The maximum permissible degree of a curve on a track depends on various factors such as gauge, wheel base of the vehicle, maximum permissible superelevation, and other such allied factors. The document outlines the process for realigning curves, including conducting a versine survey of the existing curve, determining the revised alignment using principles of curve geometry, and slewing the track to the new alignment. (a) The versine survey should be started at least 3 half chord lengths ahead of the apparent tangent point. 6 Equilibrium speed 1. The A. This is seen in Fig. No cable box or long-term contract required. Versine measurement in a 20 m long chord: 1. 3) Definitions for terms like cant, equilibrium speed, cant deficiency, and transition curves. The asymmetrical chord measurements were introduced as well. If the versines around a curve are similar or constant, the curve is smooth. G = 16° (Min, R=109m) Maximum degree of curvature for N. The document discusses guidelines for curved track and realignment of curves, including: 1) How to determine the radius of a curve by measuring the versine using overlapping chords. Welcome to the Versine Calculator! In this article, we will delve into the concept of the versine and its calculator. Download scientific diagram | Change of the versine (20-m chord method) and wear along the length of the curve (curve No. Below. your Queries versine The term versine is also sometimes used to describe deviations from straightness in an arbitrary planar curve, of which the above circle is a special case. Curves Use this to convert versines and chords to a radius, and also allowable speed limits. Transition Curve curve of variable radius is known as a transition curve. The formula for calculating a curve’s radius is: A) R = ( L x L + (4 x V x V)) / (8 x V) (all figures in feet) Download scientific diagram | Geometric representation of the versine measurement. 10. A graph can be shown to represent the versine profile of the track. In case of reverse curve, the versine survey should be continuous but transferred to the outer rail at point where curva- ture changes sign. Determine the radius, the length of the curve, and the distance from the circle to the chord M. Learn about ROC, station variation, and key standards in railway curve maintenance. The term versine is also sometimes used to describe deviations from straightness in an arbitrary planar curve, of which the above circle is a special case. The versine is the perpendicular distance of the midpoint of a chord from the arc of a circle. , the rate of change of versine per unit length, is then calculated once the length of the transition curve and the theoretical versine proposed to be adopted are known. The first formula calculates the radius of the curve (R) based on the degree of curvature (C), while the second formula calculates the length of the curve (L) using the radius of the curve (R) and the degree of curvature (C). What is Versine in curve? Given a chord between two points in a curve, the perpendicular distance v from the chord to the curve (usually at the chord midpoint) is called a versine measurement. Jun 23, 2020 · 401. As seen, one curve of versine x is joined to a second curve of versine y by a length of rail with increasing versine. 1 Curves without transition Vertical curves 1. Feature Curve versine We would like to show you a description here but the site won’t allow us. Fig. A 7 degree curve would have a versine of 7 inches. E. To meet the requirements of calculating versine in the lining and lifting Jan 20, 2020 · To meet the requirements of calculating the versine in the lining and lifting work carried out by a tamping wagon, the authors of [17] proposed an approach for modeling the track curve and an algorithm for calculating the versine of any point in the rectangular coordinate system. Determination of Radius - (1) The radius of a curve is determined by measuring the versine on a chord of known length, from the equation, (2) Curves can be designated by the radius in metres or by its degree. The equations for proximate vertical versine calculations were therefore derived. e. The angle subtended at the center by a chord of 30. The versine is used to assess the alignment and smoothness of the track, particularly in curved sections where changes in direction or alignment occur. In reality, string is too thick to provide a clear The versine gradient, i. Permissible Versine of Curve is 30 mm per degree of curve. It helps determine various parameters associated with the curve, such as radius, degree of curvature, and superelevation, ensuring safe and efficient train operations. May 26, 2021 · A transition rail is used if two curves of different versines are joined. This report aims to address such observations. 3 Reverse curve 1. [3] By comparing the surveyed versine figures to the design versines, this can then be used to determine what slues should be applied to the track in order to make the curve correctly aligned. G = 40° (Min, R=44m) RADIUS AND VERSINE OF A CURVE Let, R = Radius of circular curve C = Length of the chord V = Versine on the above chord length The term versine is also sometimes used to describe deviations from straightness in an arbitrary planar curve, of which the above circle is a special case. 5 Quantitative analysis of forces on vehicle on a curve 1. Whether you’re a math enthusiast, a student, or simply curious about trigonometric functions, this article will guide you through the fundamentals of the versine and how to calculate it using the Versine Calculator. Jul 3, 2021 · Note:- 1. 4 Managing centrifugal force 1. Ideally, this is a linear relationship. Curve | गोलाई | curve versine, superelevation, transition, radius and degree measurement TECH GAINER 78. This versine is the same as the theoretical versine if both ends of the chord are on the same geometrical element (straight, circular curve or transition curve). If degree of curve is 5° then allowable versine of curve will be 5*30 = 150 mm. 5 Length of transition in case of compound and reverse curves 1. The operator can couple together two or more calculator units, and thereby use 60 or more versine stations, according to the length of the alignment. The unit has 30 indicators with which to set up the versine diagram, on graduated scales of 250-mm length. A piece of string is stretched over each four of these sections of a chord and the versine hf is progressively measured in the middle between marked point to marked Point. where, M = Versine of cu Jan 20, 2020 · Three points on a plane determine a circle with a radius R, and the height of this triangle is the curve versine f, while the base is the measurement chord c. The decision to realign should be taken by . Degree and radius describe curves, with smaller CHAPTER IV CURVED TRACK AND REALIGNMENT OF CURVES PART 'A' GENERAL 401. Determination of Radius - (1) The radius of a curve is determined by measuring the versine on a chord of known length, from the equation, HomeIRICEN SOFTWARE Oct 1, 2024 · The term versine is also sometimes used to describe deviations from straightness in an arbitrary planar curve, of which the above circle is a special case. Once the versine is known, the radius of the curve can be calculated. N shall check at least one curve of each Permanent way Inspector every quarter by taking its versine and superelevation as well as gauge from end to end. 11. The relationship between the radius and versine of a curve can be established as shown in Fig. E. Start learning today! The term versine is also sometimes used to describe deviations from straightness in an arbitrary planar curve, of which the above circle is a special case. In curve we details discuss about curve, type of curve, basic definitions of curve, elements of circular curve, apex distance, chainage of tangent points, intermediate chord length. Such a curve is provided between a straight and a circular curve, or between branches of a compound or reverse curve to avoid an abrupt change in direction when the alignment changes. 3K subscribers Subscribe Dec 4, 2023 · Concept: Versine of curve: The versine is the perpendicular distance of the midpoint of a chord from the arc of a circle. 2) Reference rails, gauge, and superelevation standards for different rail gauges. The versine can be extended to the complex plane as illustrated above. Curves shall be described The slews necessary for the realignment are automatically registered at each point. For the assessment of the track curvature the curve should be divided into 5 m long sections. 3 Forces on a vehicle during movement on curve 1. - How to calculate versine of a curve Nov 27, 2021 · The versine values for the perfect circular curve would have the same number. Sep 1, 2014 · Curve adjusting is an important part in the railway maintenance and plays a major role in the railway safe operations. It also explains the This document provides an introduction to railway curves. This was a lot easier to use. The versine of an angle is 1 minus its cosine. Sine, cosine, and versine of θ in terms of a unit circle, centered at O The Hallade method, devised by Frenchman Emile Hallade, is a method used in track geometry for surveying, designing and setting out curves in railway track. I am happy to help you with your questions. from publication: Railway Geodesy: The Benefit of Using a Multi-discipline Approach for the Assessment of Track May 21, 2016 · Remember, most railroad curves use spirals (or, transition curves) to "introduce" the main, circular portion of the curve. See sketch. PIE Brand Versine Measuring Kit Model VK-1 is a handy tool for measurement of horizontal alignment and laying curves and consists of two holders , cord and a versine scale. Jan 11, 2023 · The Railroad Curve Calculator is a valuable tool used in railway engineering to design and analyze curved sections of railroad tracks. Curvature restricts speed and train length, increases maintenance costs, and risks accidents. It is also called a easement curve. Given a chord between two points in a curve, the perpendicular distance v from the chord to the curve (usually at the chord midpoint) is called a versine measurement. 64 How the versine of a curve is measured. 2. 12. How to calculate versine of a curve? Let me give you a quick introduction about myself, Good day, I am Delphi. Station to Station versine difference: The running over a curve depends not only on the difference between the actual versine but also on the station to station variation of the actual versine values. Adjustment of the track location in the horizontal plane by thrusting the track on curves and Test your understanding of Civil Engineering curves! Dive into our quiz and flashcards on the versine of curve formula. The shapes of track sections such as transition curves and curves are analyzed and evaluated on the basis of horizontal versine measurements. Dec 8, 2016 · Ideal versineª – the versine measured as offset to a chord on the ideal track, without any irregularities. 4. Introduction Identification of a curve Versine of a Curve Movement of a Vehicle on a Curve 1. The versine is defined as the perpendicular distance from the midpoint of the arc of a curve to the chord connecting the two ends of the curve. It discusses key concepts like versine, superelevation, cant deficiency, transition curves, and types of curves. With regards to horizontal and vertical design, if curves are involved, a transition rail may have to be used. The term versine is also sometimes used to describe deviations from straightness in an arbitrary planar curve, of which the above circle is a special case. To meet the requirements of calculating versine in the lining and lifting work carried out by the tamping wagon, this paper proposes an approach for modelling the track curve and an algorithm for calculating the versine of any point in the rectangular coordinate Sep 12, 2021 · CURVES Part 2 versine of curveLive TV from 100+ channels. Let’s dive in! 3) Observations from railways requesting the criteria be modified to more explicitly link the allowable versine variation to the actual permitted speed on each curve, given curves often have restricted speeds. Versine and Super elevation of curve in railways track|versine and curve rail track#indianrailway#versine#superelevation#civilengineering How to use the Hallade method to measure curve radius with basic tools Key terms explained: versine, chord, half-chord The geometric principles behind the Hallade method Abstract: Curve adjusting is an important part in the railway maintenance and plays a major role in the railway safe operations. For a straight line, the versine of any chord is zero, so this measurement characterizes the straightness of the curve. 2 Movement without slip 1. Magnetic Rail Versine Measuring Kits is also called string box for railway curve measurement. It describes the criteria for determining when a curve requires realignment, such as exceeding service limits for variation between stations. Finally, it discusses setting out curves For checking the radii of the turnout and turn-in curves, overlapping curve of 6 metres should be used and the versine measuring stations should be located at every 1. A 7-degree horizontal curve covers an angle of 63o15’34”. (b) Versine readings to be taken on gauge face of the outer rail. Real-life Application The Railroad Curve Calculator is widely used in railway engineering and construction projects. 5 metres, is the degree of the curve. Relationship between radius and versine of a curve Versine is the perpendicular distance of the midpoint of a chord from the arc of a circle. [1] It involves measuring the offset of a string line from the outside of a curve at the central point of a chord. Curve positive vector measuring box is a regular work in rail line maintenance. Horizontal curves change track direction, while vertical curves connect gradients or gradients to level ground. ohvx ihxglf upzk yfem ktrr vhzswm awantd ghbaxc gvvp hof giuxs zorgsd uhlgiqwe sbkxx mrjlywfi