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本文对直线、曲线的性质及优、缺点,从汽车行驶、司机视线、乘客心理、工程经济及调设,、放样等方面进行了分析,对直线、曲线的应用条件提出了自己的看法,并根据系统工程学原理,提出不应孤立地不分场合地限制直线长度,应从线形本身的特点,线形最优组合,线形与地形、环境的协调线路行车系统整体的功能与作用等,统一筹划。实际应用时,应因山、因水、因地、因景物而灵活运用,或曲中有直、直中有曲,或曲线为主直线为辅,或直线为主曲线为辅而不宜千篇一律,统一规定,更不宜片面追求直线长度或曲线长度。
This paper analyzes the nature, advantages and disadvantages of straight lines and curves, and analyzes the driving conditions, the driver’s line of sight, passenger psychology, engineering economy and setting-out, and puts forward his own opinions on the application conditions of straight lines and curves. According to the principle of system engineering, it is proposed that the length of straight line should not be limited in isolation. It should be planned according to the characteristics of line itself, the optimal combination of line shape, the function and function of coordinated line driving system of line and topography and environment. Practical application, due to mountains, due to water, due to the scene and the flexibility to use, or the song has straight, straight in the song, or the main curve-supplemented, or straight-based curve instead of stereotyped, Uniform provisions, not to pursue one-sided length or curve length.