Design of Highway _1788 Some Problems

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Design of Highway Issues

83; emergency parking zone, while the 104 line of Qufu in the fast lane on both sides of the northern section of the layout of the 4.25 meters of non-motorized vehicles, and motorized vehicles and non-motorized vehicles or fence with a concrete divider separating. This cross-sectional standard layout and a road cross section difference, but when we consider the design, combined with China's specific national conditions, taking into account the region A. JJ vehicles, bicycles and animal-t characteristics of vehicles so the two set the fast lane - Dam 4 d. Non-motor vehicle lanes of 25 meters, this cross-sectional layout and non-motorized vehicles to achieve the upstream and downstream of the traffic lane. The function of some of the roads clear, to avoid the vertical and non-motorized vehicles and pedestrians between the interference and increase the road capacity, particularly to improve the speed of motor vehicles, reducing traffic accidents. The standards laid by a road cross section, in the current situation can not effectively control non-motor vehicles and pedestrians on the road,[link widoczny dla zalogowanych], as long as pedestrians, rickshaws and animal-vehicle traffic on the road, there is the phenomenon of occupation of the fast lane, so the fast lane width can not be fully effective, a serious impact on motor vehicle traffic, and prone to traffic accidents. 104 line in Jinan, Qufu has opened a more than two years, it has been reflected in all sectors of society,[link widoczny dla zalogowanych], practice has proven that the fast track to set a non-motor vehicle lanes on both sides - the level road cross-section is suitable for the current status of national conditions and traffic composition. 4-dimensional linear combination of the three-dimensional highway alignment is planar, longitudinal and cross combinations in the three-dimensional space, that is three-dimensional combination. Re-introducing the concept of time is four-dimensional combination. Three-dimensional linear plane is mainly a combination of linear and Vertical Alignment. How well coordinated with each other,[link widoczny dla zalogowanych], not only full of organs and Dynamics of the requirements, and projects. Driving psychology is also consistent with the requirements of the driver and passengers to enjoy the beauty that we route alignment design purposes. Under the 'highway route design' Plane and the principle of linear combination of linear t Plane standards should be the size of sticks of Mu value. With l04 song. Zhao's situation regardless of the northern section from the curve by the use of semi-vertical curves corresponding relationship between peace and basically are more appropriately dealt with, forming a line of continuity, to the driver and passengers brought the visual and psychological sense of security. The section of the longest straight line 7o02 m, nine from the vertical gradient of the surface to see if changes in vertical curve located five convex and concave vertical curve around, but are less than 1 longitudinal, did not see from the fact the formation of ostrich bee, dark Au and jumps to keep the driver and passengers of visual continuity of E. * 16 * As for the \Micro-hill in the plain areas, undulating terrain, steep, especially for flat hill area of the old road reconstruction, to avoid the big dig fill large, the amount of savings in engineering,[link widoczny dla zalogowanych], to achieve flat vertical - corresponding to the principle of vertical and flat package is more difficult to. Road humps cross slope of 1.5, 0.5 and 1.5 is generally longitudinal, this whole line of the slope of each segment were synthesized more than 0.5 and less than 1.5 to meet the specification requirements,[link widoczny dla zalogowanych], conducive to road drainage. Is set high in the corners should be noted that the section. Should be set to discharge canal (- 15 ~ 20 meters as set - Road) through the median, to facilitate the high side of the median rapid water exclusion. The line-shaped coordination with the surrounding environment is better. Qufu is famous and known historical city in the world, through the historical sites along the more there Xiema Pavilion, Shek Mun Temple, College and Cemetery of Confucius and so on. Due to micro-line in plain and hill is the old road reconstruction, no major big dig fill, so better to keep the original natural landscape. We consider Qufu is a city that features more than two thousand years of history, set a number of corresponding facilities. a) a number of sections of green planting cypress, to the driver and passengers are simple and elegant feeling. b) every 3 to 4 kilometers around the site of the parking bay set. The construction of the pavilion with the flavor of ancient architecture, increasing the nostalgic atmosphere. c) t in the sculpture of the two cities is about to enter the intersection of State Highway built large-scale sculpture - tune of welcome. An old car pulled off the horse, here are twenty-meter-high lotus pedestal with dragon pillars, magnificent, with directions to meet the Quartet's visitors, symbolizing the etiquette of hospitality of the people t help to have friends from afar, exhilaration. \gate, and the GBM project supporting the shoulder and tidy prefabricated concrete block slope. both for the coordination of the surrounding landscape along the route, or the induction of both the visual received good results.