课件内容：
Introduction
Master the basic concept and scope of road design in this chapter.
1.1 Goal and contents of the class
1.2 Functions and classfications of roads
1.3 Control elements of road design
Horizontal alignment design
The road is a three-dimensional structure and its plane projection is the horizontal alignment which is the content of this chapter.
2.1 Tangent
2.2 Circular curve
2.3 Transition curve
2.4 Calculation of horizontal curve
2.5 Combination of horizontal alignment design elements
2.6 Principal and deliverables of horizontal alignment design
Vertical alignment design
The road is a three-dimensional structure and its vertical projection is the vertical alignment which is the content of this chapter.
3.1 Concept of vertical alignment design
3.2 Concept of grades and the applications
3.3 Vertical curve design
3.4 Combination design of horizontal and vertical alignments I
3.5 Combination design of horizontal and vertical alignments II
3.6 Design methods of vertical alignment
Cross section design
The cross section of the road is obtained by cutting each point of the road centerline perpendicularly which contains a variety of elements. The superelevation transitions and corresponding calculations are key contents.
4.1 Composition of highway cross sections
4.2 Composition of urban road cross sections
4-3 Widening design of horizontal curves
4-4 Superelevation design
4-5 Superelevation calculation I
4-6 Superelevation calculation II
4-7 Climbing lane and emergency escape ramp
4-8 Driving sight calculation
4-9 Driving sight verification
4-10 Design of cross section
4-11 Deliverables of cross section design
4-12 Calculation and deployment of earthwork
Overall road design
The overall road design is a systematic project which outlines the key influencing factors and negotiates the requirements of road safety function quality environmental protection and economy etc. to harvest the overall design.
5.1 Requirements and procedures for overall road design
5.2 Cases of overall road design
Route selection and alignment Location
Route is the skeleton of the road which affects the function of the road itself and the performance in the road network which is determined by repetitive comparisons.
6.1 Main contents of route selection and alignment location
6.2 Principles of route selection in mountainous region
6.3 Method of line development in mountainous region
6.4 Alignment location Methods
Intersection design
Intersection is the bottleneck of the traffic flows which needs to be designed considering traffic characteristics and road class and function.
7-1 Traffic characteristics and design requirements of intersection
7-2 Type and characteristic of intersection
7-3 Traffic management of intersection
7-4 Channelization of intersection
7-5 Sight distance of intersection
7-6 Roundabout design
7-7 Elevation planning
CAD road design
Computer aided design (CAD) is a powerful tool in road design which greatly increases design efficiency and takes advantage of the latest survey techniques such as oblique photography to increase display effect. In this section applications of CAD tool in road design are presented with field cases.
8.1 Horizontal alignment design
8.2 Vertical alignment design
8.3 Cross section design
8.4 3D modeling and simulation
《Road Survey and Design》PPT课件 东南大学 于斌
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