The area of application of the traction linear asynchronous motors are systems of industrial and urban transport. The main advantage of these actuators are the removal of restrictions on the accelerations and the angles of the vehicle, as well as their ecological cleanliness. Actual becomes the task of developing high-speed software for the design and analysis modes of operation of linear motors. Application of the finite element method for solving field problems in three-dimensional and dynamic modes of vehicle operation is time-consuming. It is proposed to use the method of detailed magnetic equivalent circuits of a longitudinal section of a linear induction motor with the introduction of the correction factor Bolton to account for the influence of transverse edge effect in solid secondary element. The features of the models based on multilayer magnetic equivalent circuit and estimation of the influence of number of layers on the calculated tractive effort of the engine. When choosing a rational relationship to the pole pitch of the engine enough to correct the gap is two-layered equivalent circuit. The secondary element is represented in the model as a set of rectangular bars connected in parallel. The influence formula calculation EMF motion of the rods of the secondary element to the calculation accuracy of the traction motor force. The largest error is observed in the region of small slides (when moving the motor in the generator mode of braking) and the simplest of recording derivative of the magnetic flux coordinate. The complication of the calculation formula specified derivative the error decreases sharply. Another way to reduce inaccuracy of calculating the electromotive force of the movement in circuits of the secondary element is the increase in the number of these contours by reducing the width of the elementary rod. It should be noted the illustration of the method of detailed magnetic equivalent circuits and the convenience of instant viewing of the results of the analysis of options.