华东交通大学学报
華東交通大學學報
화동교통대학학보
JOURNAL OF EAST CHINA JIAOTONG UNIVERSITY
2014年
6期
17-23
,共7页
江良华%倪洪亮%王晓安%杨鹏
江良華%倪洪亮%王曉安%楊鵬
강량화%예홍량%왕효안%양붕
道路工程%选线评价,公路建模%模型输出
道路工程%選線評價,公路建模%模型輸齣
도로공정%선선평개,공로건모%모형수출
road engineering%alignment evaluation%highway modeling%output of the model
为使驾驶模拟系统应用于公路选线阶段的备选方案评价与比选,基于公路堪测理论,利用备选方案的平,纵,横初步设计资料构建公路三维模型:利用数字地面模型,判断公路两侧填挖关系,按指定的坡比和台阶宽度,自动生成道路两侧边坡模型;搜索全线填挖高度,自动提取桥梁和隧道信息,并构建桥梁和隧道的仿真模型,最后将上述构建的模型输出为Open?Flight格式。实例应用效果表明:该方法可快速构建选线阶段的公路三维模型,所构建的模型与实体模型误差小,模型格式具有较好的通用性和可移植性。该方法能有效缩短利用驾驶模拟系统进行备选方案评价与比选的视景开发周期。
為使駕駛模擬繫統應用于公路選線階段的備選方案評價與比選,基于公路堪測理論,利用備選方案的平,縱,橫初步設計資料構建公路三維模型:利用數字地麵模型,判斷公路兩側填挖關繫,按指定的坡比和檯階寬度,自動生成道路兩側邊坡模型;搜索全線填挖高度,自動提取橋樑和隧道信息,併構建橋樑和隧道的倣真模型,最後將上述構建的模型輸齣為Open?Flight格式。實例應用效果錶明:該方法可快速構建選線階段的公路三維模型,所構建的模型與實體模型誤差小,模型格式具有較好的通用性和可移植性。該方法能有效縮短利用駕駛模擬繫統進行備選方案評價與比選的視景開髮週期。
위사가사모의계통응용우공로선선계단적비선방안평개여비선,기우공로감측이론,이용비선방안적평,종,횡초보설계자료구건공로삼유모형:이용수자지면모형,판단공로량측전알관계,안지정적파비화태계관도,자동생성도로량측변파모형;수색전선전알고도,자동제취교량화수도신식,병구건교량화수도적방진모형,최후장상술구건적모형수출위Open?Flight격식。실례응용효과표명:해방법가쾌속구건선선계단적공로삼유모형,소구건적모형여실체모형오차소,모형격식구유교호적통용성화가이식성。해방법능유효축단이용가사모의계통진행비선방안평개여비선적시경개발주기。
In order to apply the driving simulation system to evaluate and compare the alignment in the highway route selection phase, based on the theory of highway map, using horizontal, longitudinal, transverse preliminary design data, this study constructed 3D model of highway. After searching the road cut fill relationship of both sides through digital terrain model, it generated the road slope model automatically on both sides according to the ratio of slope and the step width specified. By searching across the cut and fill height and determining the bridge or tun?nel section, bridge or tunnel simulation model was constructed. Then the model was output in OpenFlight format. The application in the examples shows that the method can quickly build up three-dimensional model of highway in line selection stage and simulation model has little error compared to entity mode with good versatility and porta?bility in model format. It also finds out that the method can effectively shorten the development cycle of using driv?ing simulation system in line selection stage for linear scheme evaluation and comparison.