CIVL1011 Transportation Engineering
Chapter 1
CHAPTER 1
TRANSPORTATION AND ITS CONTEXT
1.
INTRODUCTION TO TRANSPORTATION ENGINEERING
1.1
Definition
Transportation engineering deals with the application of technology and scientific principles
to the planni
THE UNIVERSITY OF HONG KONG
CIVL1011/CIVL2111
Transportation Engineering
Chapter 5
Highway Geometric Design
104
Horizontal Curves
Simple curves
Terminology
Back tangent
Point of curve (P.C.)
Point of tangency (P.T.)
Point of intersection (P.I.)
Central an
CIVL1011/CIVL2111
Februrary 25, 2013
Highway Operations
Hong Kong situation
Traffic
flow
Ultimate capacity
Design flow
NOT to cause unreasonable
delay
hazard
difficulty in maneuvering
Predicted flow in design year
(say 15 years)
93
CIVL1011/CIVL2111
Fe
Land Use Model
Lowry model
Service employment trip matrix
TSij depends on
Fj business
opportunity in
zone j
tij
travel time
between zones i
and j
T Sij
2
TS13
3
1
TS14
4
F j / t ij
N i n
j 1 F j / t ij
TS11
TS12
,
Demand for services, N1
Where are the
Land Use Model
Planned requirement approach
Phase I
Data collection and forecast
Phase II
Define a set of location requirements for each land use category
manufacturing should be located on reasonably level and of 5% slope
elementary schools should serv
Cost-Benefit Analysis
Example
Consider an urban highway corridor of 5 km in length:
Average Annual Daily Traffic (AADT): Q (veh/day)
Speed-flow model: V = 80exp(-Q) (km/h)
Fuel consumption model: F = 0.0851 + 2.824/V (litres/veh/km)
Fuel price = $4 per li
Cost-Benefit Analysis
Braesss paradox
An improved network add a new link a
(52)
50+x1
O
2 (82) A
(30)
10x4
(11) 100+x5
10+xa 1 (81)
10x3
(40)
B
Demand: O D = 6 units
3 (93)
D
50+x2
(53)
48
Cost-Benefit Analysis
Braesss paradox
An improved network add a ne
Equilibrium Analysis
Cost of travel
Ca(V)
Maximum social welfare
S
S
V
0 C d () C a (V )d
Cd(V)
V
Cd(V) - Ca(V)V
Maximize S
dS
dV
Volume
Ca(V)V
V
dC a ( )
d
0
dV
V
C d (V ) C a (V )
C d (V ) C a ( ) V
V
C d( ) C m( )
V
V
0
dC a ( )
V
dV
(for maximum s
Equilibrium Analysis
Performance curve
Cost of travel
Average cost,
Ca(V)
Ca(V0)
V0
Volume, V
Average cost function
The average cost of travel for all travelers in the system
A monotonic increasing and convex function
30
Equilibrium Analysis
Performance c
Hong Kong Situation
Administration
Transport and Housing Bureau
Secretary for Transport and Housing
Prof. Anthony Cheung
Permanent Secretary for Transport and Housing
(Transport)
Transport Department
Commissioner for Transport
Mr. Joseph Lai
Ms. Susie Ho
THE UNIVERSITY OF HONG KONG
CIVL1011
Transportation Engineering
Introduction
1
Course Lecturers
Professor S.C. Wong
Room 6-26, Haking Wong Building
Tel.: 2859 1964
Fax: 2559 5337
E-mail: [email protected]
WWW: http:/web.hku.hk/~hhecwsc
Dr. W.Y. Szeto
Room 5-
CIVL1011/CIVL2111 Transportation Engineering
Chapter 3
CHAPTER 3
LAND USE AND TRANSPORTATION
1.
LAND USE AND TRANSPORT PLANNING
There are seven principal models used in the process of transport planning:
(1) Population model;
(2) Economic activity model;
CIVL1011 Transportation Engineering
Chapter 6
CHAPTER 6
MASS HAUL DIAGRAM
1.
CROSS SECTION
The cross sections are taken on vertical planes at right angles to the alignment. To estimate
the required quantities of excavation and embankment, the areas of cro
CIVL1011 Transportation Engineering
Chapter 5
CHAPTER 5
HIGHWAY GEOMETRIC DESIGN
1.
HORIZONTAL CURVES
1.1
Simple curves
1.1.1
Terminology
A simple curve is a circular arc joining two tangents as shown in Figure 5.1. The forward
direction of an alignment i
CIVL1011 Transportation Engineering
Chapter 4
CHAPTER 4
HIGHWAY TRANSPORTATION SYSTEM
1.
CAPACITY
The capacity of a highway is the maximum hourly rate at which persons or vehicles can
reasonably be expected to traverse a point or uniform segment of a lane
CIVL1011 Transportation Engineering
Chapter 3
CHAPTER 3
LAND USE AND TRANSPORTATION
1.
LAND USE AND TRANSPORT PLANNING
There are seven principal models used in the process of transport planning:
(1) Population model;
(2) Economic activity model;
(3) Land
CIVL1011 Transportation Engineering
Chapter 2
CHAPTER 2
TRANSPORTATION ECONOMICS
1.
COST STRUCTURE
The cost for providing transport services can be viewed from the system and user
perspectives. From the system perspective, it is the total investment requi
CIVL1011 Transportation Engineering
S.C. Wong
TRANSPORTATION ENGINEERING
TABLE OF CONTENTS
CHAPTER 1 TRANSPORTATION AND ITS CONTEXT
1.1
Introduction to transportation engineering
1.1.1 Definition
1.1.2 Some relevant professional institutions
1.1.3 Some st