为保证植物防眩效果及避免形成“墙壁效应”,从道路线形组合的角度出发，考虑车道数、车辆类型、驾驶员视觉等因素，首先，构建了直线段和曲线段植物设置间距模型、设或不设超高的平曲线、凹形和凸形竖曲线的植物防眩高度模型以及植物防眩高度极限模型。其次，结合规范和实际施工过程中常用参数对模型进行了标定，得到了不同速度下植物防眩设置间距和高度的理论值，并考虑植株成本和施工养护便利性，确定了推荐值。最后，以黑大公路为例，对植物防眩设置间距和高度模型进行了验证，结果表明：设计速度100 km/h时，直线坡、直线-凹形竖曲线路段的设置间距为9 m,高度为1.90 m;超高平曲线路段的设置间距为3 m,高度为1.95 m;凸形竖曲线路段的设置间距为3 m,高度为1.90 m;推荐值满足了不同线形组合下差异化与精确化的设计要求，同时也能方便施工养护，降低成本。

In order to ensure the anti-glare effect of plants and avoid the formation of “wall effect”, from the perspective of road alignment combination, considering factors such as the number of lanes, vehicle type, and driver's vision, firstly, spacing models for plants on straight and curved sections, height models for superelevation or not superelevation horizontal curve, height models for concave and convex vertical curves, and a plant height limit model were constructed. Secondly, the models were calibrated based on the specifications and commonly used parameters in actual construction, and the theoretical values of the spacing and height at different speeds were obtained. Considering the cost of plants and the convenience of construction and maintenance, the recommended values were determined. Finally, taking Heida Highway as an example, the spacing and height models of plant anti-glare were validated, and the results showed that at a speed of 100 km / h, the spacing is 9 m and the height is 1. 90 m in straight slope and straight concave vertical curve sections; The spacing and height of the superelevation horizontal curve section are 3 m and 1. 95 m respectively; The spacing in convex vertical curve sections is 3 m, and the height is 1. 90 m. The recommended values meet the design requirements for differentiation and precision under different alignment combination, while also facilitate construction and maintenance, and reduce costs.