Director Infrastructure and
Network Management
Presented by
Sany R. Zein, M.Eng., P.Eng.
Top 10 TransLink
Projects Employing
Civil and
Transportation
Engineers
March 25, 2014
TransLink Overview
Roads
CIVL 340
10
1. An observer on a freeway facility noted that when vehicles are in ajamming condition,
the average spacing ism He also noted that the trafc ow was 2250 veh/hr/lzme
when the density was 6
CIVL 340
Transportation Engineering I
Mid Term Exam g2016! v
Time 70 minutes
Student #2 i Name:
-_
1. A study of freeway ow at a particular site has resulted in calibrated speeddensity relationship
as
H
3:55.31 whims |.- is m: 11 in kmn' and 5 is the spacing In turn. hswluinf. I.I'-all I: ~
Fi-1r ' R.
my length nfvahiclu-is m: _
[BI DEW-1hr. 94:. 1H; and q-k diagrams indicating urimul wings Eh. v,
CIVL 340
Transportation Engineering I
Dr. Tarek Sayed, P.Eng.
[email protected]
The Driver
Accident Statistics
Forgiving Highways
A highway that
forgives a driver for
making an error
Caring Highways
Civil 340
Transportation Engineering I
Dr. Tarek Sayed, P.Eng.
[email protected]
Objective
The course covers the basic analysis and
design of the elements of transportation
facilities in the develop
1
Traffic Flow Theory
- Characteristic Variables
Traffic flow can be defined by the key
variables:
Flow
Headway/Spacing
Speed
Density/occupancy
2
Flow
Flow (q) = Number of vehicles (N) that
pass a
Geometric Design of Highways
Definition
A highway is a route for general public use for the passage of
vehicles (The British Columbia Highway Act)
Highway Design
Design is the process of selecting the
Unconventional Intersection
Unconventional Intersections
Heavy left-turning movements at conventional intersections can
significantly impact their operating performance
Methods to improve the performa
Predicting the Safety
Performance Associated With
Highway Design Decisions:
A Case Study of the Sea to Sky
Highway
Highway 99: The Sea to Sky Highway
Connects Vancouver area to
Whistler Resort Area
TRAFFIC SAFETY
Dr. Tarek Sayed, P.Eng.
Department of Civil Engineering
University of British Columbia
BACKGROUND
Traffic safety has been a serious concern since the start of the automobile age, approx
CIVL 340
Problem 2 Traffic Flow Theory
1) An Engineer has the following data for a freeway segment:
v (km/hr)
k (veh/km)
a)
b)
c)
d)
86
7
66
28
53
39
43
50
34
65
29
70
Applying Greenshields assumption
CLVL 340
Transportation Engineering I
Problem 3 Geometric Design of Hiuhwavs
1. Determine the radius of a horizontal curve needed to join two straight sections of a 2lane highway with a design speed o
CWL 340- Final Examination
PageS
April1999
Traffic Safety and ITS
Marks
The average accident rate for urban 4-way STOP controlled intersections in the City of Vancouver
is 0,6 acc/mev. You are analyzi
Civil 504360: Highway Engineering
Problem 4 Freeways and Two-lane Highway
1. A six-lane urban freeway is on rolling terrain with a 70 mph free flow speed, 10 ft lanes, with
obstructions 2 ft from both
Two-Lane Highways Capacity
and LOS
Definitions
Two-lane highways are defined as two-lane
roadways with one lane available to traffic in
each direction
Difference between two lane highways and
freeway
Freeway Capacity Analysis
Definitions
Two main types of transportation facilities:
Uninterrupted Flow Facilities: those that have no
fixed elements external to the traffic stream
(such as signals, e
Intersections
Examples of at Grade
Intersections
Examples of at Grade
Intersections
Interchanges
Intersection Design
Objective of Intersection
Design
Minimize the number,
severity of conflicts and
ve
Introduction to Road Safety
CIVL 340
Tarek Sayed, Ph.D., P.Eng.
Introduction
We can build and operate roads to be more
safe or less safe
Engineers should know how to estimate the
safety impacts of t
Civil 340
Problem 4 Freeways and Two-lane Highway
1. A six-lane urban freeway is on rolling terrain with 12 ft lanes, obstructions 4 ft from both
roadside and median edges and ramp density equal to 2