1.0.1 This Code is developed to adapt the demands of urban road construction and development in China, regulate engineering design of urban road, unify the key technical indexes of urban road engineering design, and guide the development of standards for urban road.
1.0.2 This standard is applicable to design of new and reconstructed urban roads at all levels within city.
1.0.3 Engineering design of urban road shall adopts reasonable technical standards according to factors such as master city plan, comprehensive city transportation planning, functional planning and considering coordination of social benefit, environment benefit and economic benefit. The engineering design shall adhere to and reflect the design principles "people oriented, resource saving and environment-friendly".
1.0.4 In addition to the requirements of this code, engineering design of urban road shall meet those specified in the current relevant standards of the state.
2 Terms and Symbols
2.1 Terms
2.1.1 Main road
Road separated from side road in freeway or arterial road, which serve motor vehicles to pass quickly.
2.1.2 Side road
Road arranged discontinuously or continuously on one or two sides of main road, serving unidirectional or bidirectional traffic, in purpose of collection and distribution for freeway or arterial road traffic.
2.1.3 Design speed
Running speed used in geometric design of road (including radius of horizontal curve, longitudinal gradient, sight distance, etc.).
2.1.4 Design life
It includes life of future traffic condition that is used to determine width of pavement and design life that road pavement structure can be used in predetermined purpose without overhaul, to determine pavement structure.
2.1.5 Traffic capacity
Maximum traffic flow that passes through certain cross section on a road section in a unit time in certain road and traffic conditions.
2.1.6 Level of service, service level
An index based on which operation conditions of traffic flow and service quality felt by drivers and passengers are weighed; it is generally determined by indicators such as traffic volume, speed, running time, degree of running (walk) freedom, traffic interruption, comfort and convenience.
2.1.7 Colorful asphalt concrete pavement
New asphalt concrete pavement with certain strength and pavement performance, made by mixing decolored asphalt and materials like colored stones or resene cementing materials, stainers and additives at the given temperature.
2.1.8 Reducing noise pavement
Pavement that has function to reduce noise generated by tire and pavement friction.
2.1.9 Pervious pavement
Pavement in which precipitation water passes through road structural layer with high area ratio and good permeability performance.
2.2 Symbols
Contents 1 General Provisions 2 Terms and Symbols 2.1 Terms 2.2 Symbols 3 Basic Requirements 3.1 Roadway Functional Classification 3.2 Design Speed 3.3 Design Vehicle 3.4 Boundary Line of Road Construction 3.5 Design Life 3.6 Load Standard 3.7 Anti-disaster standard 4 Traffic Capacity and Level of Service 4.1 General Requirements 4.2 Freeway 4.3 Other Urban Roads 4.4 Bicycle Lane 4.5 Pedestrian Facility 5 Cross Section 5.1 General Requirements 5.2 Cross Section Type 5.3 Cross Section Element and Width 5.4 Road Crown and Cross Slope 5.5 Curbs 6 Plane and Vertical Alignment 6.1 General Requirements 6.2 Horizontal Alignment 6.3 Vertical Alignment 6.4 Combinations of Horizontal and Vertical Alignments 7 Road and Road Intersection 7.1 General Requirements 7.2 At-grade Intersection 7.3 Grade Separations and Intersections 8 Road-railway Intersection 8.1 General Requirements 8.2 Road-railway Grade Crossing 8.3 Road-railway and Road-tram At-grade Intersections 9 Pedestrian and Bicycle 9.1 General Requirements 9.2 Pedestrian 9.3 Bicycle 10 Public Transport Facility 10.1 General Requirements 10.2 Reserved Bus Lanes 10.3 Bus Station 11 Public Parking Lot and City Square 11.1 General Requirements 11.2 Public Parking Lot 11.3 City Square 12 Subgrade and Pavement 12.1 General Requirements 12.2 Subgrade 12.3 Pavement 12.4 Pavement Rehabilitation and Recontruction 13 Bridge and Tunnel 13.1 General Requirements 13.2 Bridge 13.3 Tunnel 14 Traffic Safety and Traffic Control Devices 14.1 General Requirements 14.2 Traffic Safety Facilities 14.3 Traffic Control Devices 14.4 Complementary Pipeline Network 15 Pipeline, Drainage and Lighting 15.1 General Requirements 15.2 Pipeline 15.3 Drainage 15.4 Lighting 16 Vegetation and Landscape 16.1 General Requirements 16.2 Vegetation 16.3 Landscape Explanation of Wording in This Code List of Quoted Standards
1 General Provisions
1.0.1 This Code is developed to adapt the demands of urban road construction and development in China, regulate engineering design of urban road, unify the key technical indexes of urban road engineering design, and guide the development of standards for urban road.
1.0.2 This standard is applicable to design of new and reconstructed urban roads at all levels within city.
1.0.3 Engineering design of urban road shall adopts reasonable technical standards according to factors such as master city plan, comprehensive city transportation planning, functional planning and considering coordination of social benefit, environment benefit and economic benefit. The engineering design shall adhere to and reflect the design principles "people oriented, resource saving and environment-friendly".
1.0.4 In addition to the requirements of this code, engineering design of urban road shall meet those specified in the current relevant standards of the state.
2 Terms and Symbols
2.1 Terms
2.1.1 Main road
Road separated from side road in freeway or arterial road, which serve motor vehicles to pass quickly.
2.1.2 Side road
Road arranged discontinuously or continuously on one or two sides of main road, serving unidirectional or bidirectional traffic, in purpose of collection and distribution for freeway or arterial road traffic.
2.1.3 Design speed
Running speed used in geometric design of road (including radius of horizontal curve, longitudinal gradient, sight distance, etc.).
2.1.4 Design life
It includes life of future traffic condition that is used to determine width of pavement and design life that road pavement structure can be used in predetermined purpose without overhaul, to determine pavement structure.
2.1.5 Traffic capacity
Maximum traffic flow that passes through certain cross section on a road section in a unit time in certain road and traffic conditions.
2.1.6 Level of service, service level
An index based on which operation conditions of traffic flow and service quality felt by drivers and passengers are weighed; it is generally determined by indicators such as traffic volume, speed, running time, degree of running (walk) freedom, traffic interruption, comfort and convenience.
2.1.7 Colorful asphalt concrete pavement
New asphalt concrete pavement with certain strength and pavement performance, made by mixing decolored asphalt and materials like colored stones or resene cementing materials, stainers and additives at the given temperature.
2.1.8 Reducing noise pavement
Pavement that has function to reduce noise generated by tire and pavement friction.
2.1.9 Pervious pavement
Pavement in which precipitation water passes through road structural layer with high area ratio and good permeability performance.
2.2 Symbols
Contents of CJJ 37-2012
Contents
1 General Provisions
2 Terms and Symbols
2.1 Terms
2.2 Symbols
3 Basic Requirements
3.1 Roadway Functional Classification
3.2 Design Speed
3.3 Design Vehicle
3.4 Boundary Line of Road Construction
3.5 Design Life
3.6 Load Standard
3.7 Anti-disaster standard
4 Traffic Capacity and Level of Service
4.1 General Requirements
4.2 Freeway
4.3 Other Urban Roads
4.4 Bicycle Lane
4.5 Pedestrian Facility
5 Cross Section
5.1 General Requirements
5.2 Cross Section Type
5.3 Cross Section Element and Width
5.4 Road Crown and Cross Slope
5.5 Curbs
6 Plane and Vertical Alignment
6.1 General Requirements
6.2 Horizontal Alignment
6.3 Vertical Alignment
6.4 Combinations of Horizontal and Vertical Alignments
7 Road and Road Intersection
7.1 General Requirements
7.2 At-grade Intersection
7.3 Grade Separations and Intersections
8 Road-railway Intersection
8.1 General Requirements
8.2 Road-railway Grade Crossing
8.3 Road-railway and Road-tram At-grade Intersections
9 Pedestrian and Bicycle
9.1 General Requirements
9.2 Pedestrian
9.3 Bicycle
10 Public Transport Facility
10.1 General Requirements
10.2 Reserved Bus Lanes
10.3 Bus Station
11 Public Parking Lot and City Square
11.1 General Requirements
11.2 Public Parking Lot
11.3 City Square
12 Subgrade and Pavement
12.1 General Requirements
12.2 Subgrade
12.3 Pavement
12.4 Pavement Rehabilitation and Recontruction
13 Bridge and Tunnel
13.1 General Requirements
13.2 Bridge
13.3 Tunnel
14 Traffic Safety and Traffic Control Devices
14.1 General Requirements
14.2 Traffic Safety Facilities
14.3 Traffic Control Devices
14.4 Complementary Pipeline Network
15 Pipeline, Drainage and Lighting
15.1 General Requirements
15.2 Pipeline
15.3 Drainage
15.4 Lighting
16 Vegetation and Landscape
16.1 General Requirements
16.2 Vegetation
16.3 Landscape
Explanation of Wording in This Code
List of Quoted Standards
