Week 5 to 8 lecture slides

Question 1

What are the 3 basic transport measures?

Answer 1

Capacity (C; i.e. people/hr)
Throughput (Q; actual volume)
Demand (D; number of desired)

Question 2

What is utilization?

Answer 2

the percentage of capacity that is represented by throughput

Question 3

numbers for below capacity, approaching capacity; and exceeding capacity

Answer 3

below: v/c<0.75
approaching: v/c= 0.75~1
exceeding: v/c>1
plan according to the 85th percentile

Question 4

What are some basic transport measures?

Answer 4

utilization; density; reliability; safety; environmental performance; sustainability performance; socio-economic performance

Question 5

what are the 7 principles for selecting performance measures?

Answer 5

comprehensive; data quality; comparable;

easy to understand; accessible and transparent; cost effective.

Question 6

what are the 3 components of an auto-based system?

Answer 6

Vehicles; ways; facilities

Question 7

What are some impacts on the roads that vehicles can make?

Answer 7

size determines the width of way.
mass determines construction material.
speed determines road curvature and compatibility with other modes.

Question 8

how are ways classified?

Answer 8

Function
Access
Speed (designed vs observed)
Capacity

Question 9

What are some of the considerations for road design?

Answer 9

Design vehicle
Design speed
Curves (verticle and horizontal)

Question 10

Why are intersections important?

Answer 10

Focus of activity
Conflicting movements
Traffic control
Capacity

Question 11

What’s the key intersection design challenge?

Answer 11

Efficiency vs safety

Question 12

What level of service are intersections designed for during peak hours?

Answer 12

D

Question 13

How do we choose design speed?

Answer 13

Road function
Compatibility with surroundings
Integration in the transport network

Question 14

What changes are made to the 85th percentile?

Answer 14

Engineers used to just accommodate the 85th percentile, even if it’s faster than desired. but now, they are trying to reduce the 85th percentile.

Question 15

What are facilities?

Answer 15

regulatory instruments (i.e. signs and signals)
determines how vehicles are legally allowed to operate along ways

Question 16

What are the intentions of traffic calming?

Answer 16

To remake the roads to make them more compatible with other modes and intended functions.

Question 17

What are some examples of traffic calming methods?

Answer 17

Narrowing lanes (specifically at intersections)
Speed tables
Materials

Question 18

Why did many oppose the GTA west corridor?

Answer 18

Not viewed as necessary
Negative impacts on watersheds
Loss of arable land
Opportunity lost-less money for transit 
Only saves 30 sec/trip

Question 19

What other options were proposed instead of the GTA west corridor?

Answer 19

Congestion pricing
Hwy 407 truck lanes
Land use management

Question 20

What are some concerns cities have in terms of autonomous vehicles?

Answer 20

Will they encourage sprawl? 
Who will have access to these AVs?
What regulatory changes are required?
Should AVs get into accidents, who's accountable?
Ownership vs share?

Question 21

What are some concerns transport agencies have in terms of AVs?

Answer 21

will streets need to be redesigned?

how will this affect public transport?

Question 22

What are some concers developers have in terms of AVs?

Answer 22

Parking?

how will AVs affect congestion?

Question 23

What are the different levels of autonomous vehicles?

Answer 23

lvl 3-driver in charge of emergency response, and doesnt function in all contexts.
lvl 4-doesnt function in all contexts
lvl 5- all autonomous!

Question 24

What are some characteristcs of public transportation?

Answer 24

Shared passenger service available to all who can pay the fare.
Discrete departure and arrival times (fixed schedule)
Limited stop locations
Predetermined routes
Greater vehicle capacity

Question 25

Why does the government subsidize public transit?

Answer 25

Because it’s an essential civic service.

Question 26

What are some steps of transit planning?

Answer 26

• determining demand (captive vs choice riders)
• determining paths and stop locations (balance of ridership vs speed)
• determining terminals
• transportation relationships with land uses (TOD)
• transit both shapes and responds to development.

Question 27

Identify 3 big challenges for transit systems in canada

Answer 27

• built form
• funding
• public attitude towards transit

Question 28

what is the primary role of public transit?

Answer 28

to provide mobility for those who dont have other means of transport.

Question 29

List the different levels of right of way

Answer 29

ROW A: fully separated
ROW B: longitudinally separated (i.e. waterloo lRT)
ROW C: mixed traffic

Question 30

What are the 8 transit mode characteristics?

Answer 30

• ROW
• propulsion
• guidance
• distance/station spacing
• speed
• labor productivity
• car capacity
• transit units (how many cars form a unit controlled by 1 driver?)

Question 31

What are the acceptable walking distances to bus stops and train terminals?

Answer 31

400 for bus

800 for rapid transit

Question 32

Where can we find some example performance measures?

Answer 32

2003 TCRP guidebook on performance measures