Research On Application Of Three-dimensional Perspective Technology Of Road Route Based On Unity3D

At present,the method of making dynamic perspective of road route generally adopts cad-3ds max,which takes a long time to render,and the viewpoint can only move according to the preset path,which can not realize real-time dynamic roaming.In this paper,Unity3 D technology is introduced into dynamic perspective.Unity3 D dynamic perspective is made by establishing model,setting collision and writing script,which realizes dynamic simulation and makes the picture more realistic.In this paper,the three-dimensional perspective technology of road route based on Unity3 D is applied to evaluate the quality of road alignment design and traffic safety design,and the following aspects are analyzed and studied in detail:(1)small radius horizontal curve is set at the top of convex vertical curve;(2)more small radius vertical curve is set in the range of short-circuit section;(3)design effect of horizontal deceleration marking;(4)inspection for stopping sight distance of cutting slope section of circular curve line.Based on the analysis of the specific evaluation content of the dynamic perspective based on Unity3 D,we can find that the small radius horizontal curve is set at the top of the convex vertical curve.Before the driver drives to the top of the convex vertical curve,it is difficult to judge the route direction,forced to reduce the driving speed,and prone to safety accidents,which must be avoided.There are many small radius vertical curves set in the short road section,the convex vertical curve blocks the front road section,and the driver’s driving sight is restricted by the vertical curve.Because of the continuous setting of small radius vertical curve,the situation that it is unable to judge the line shape of the front road will continue to occur,resulting in the driver in a bad state for a long time,seriously affecting the driving safety,which should be avoided in the design.In order to objectively evaluate the design effect of horizontal deceleration marking,10 road designers with driving experience were invited to carry out virtual roaming test.The results show that all designers think that the deceleration effect is better.In the inspection of stopping sight distance of cutting slope section of curved line,it is found that in order to ensure good intervisibility of cutting slope section,the radius of circular curve should be greater than the minimum recommended radius of superelevation.Unity3D-based three-dimensional perspective technology of road route can enable designers to evaluate route alignment and traffic safety design through visual,motion and time-varying sensations.Through dynamic perspective,Designers can visually see whether the three-dimensional alignment is suitable,whether there are easy to make misjudgments or confused places,roadside barriers.Is there any obstruction to sight? In view of the problems checked out,optimization can minimize the hidden dangers of the project,ensure that the design route is reasonable,safe,comfortable and coordinated,and play an important role in the route design.Because of its good interaction,real-time and script compatibility,Unity3D-based three-dimensional perspective technology of road route has overcome the shortcomings of traditional technologies such as drawings,tables,animation and so on.It can be used in the design work to help more intuitive response to the design content,and can effectively verify and evaluate the road alignment combination.The quality of design and traffic safety design can greatly improve the design efficiency,and has strong application value and development space.As an auxiliary design method,route three-dimensional perspective technology needs to be tested and perfected in more engineering examples.