Awesome American (Module 5.2: Public Transport)

Question 1

What is the concept of operations?

Answer 1

Explains vehicle movements in space and time

Question 2

What do we want to minimise in order to increase productivity of operations?

Answer 2

• layovers/terminal time
• dead trips/dead-heading
• dwell time

Question 3

What do we want to maximise in order to increase productivity of operations?

Answer 3

Productive time of vehicles and operators, in revenue service

Question 4

What is Right-of-way Primary Modal Characteristics?

Answer 4

• mixed traffic (no grade separation)
• Partial grade separation
• Full grade separation

Question 5

What are the main characteristics of vehicle service?

Answer 5

• Frequency
• Operating speed
• Capacity
• Reliability
• Level of service to the passenger

Question 6

What is Capacity (plus formula)

Answer 6

Maximum passenger flow on route

Capacity=CvehNvehf

Question 7

What are factors affecting capacity?

Answer 7

Vehicle Capacity
Vehicles in consist
-limited by terminal capacity
Frequency

Question 8

What is the Fixed block system in Rail?

Answer 8

Train occupies a physical “block” of track

Train control is based on safe operation

• train is not allowed to enter an occupied block
• train speed in earlier blocks depends on signals

Question 9

What is a Moving block system in rail?

Answer 9

Block matches train length and moves with train

Train speed is controlled manually with speed commands or cab signalling

Question 10

What is Automatic train control?

Answer 10

Computer systems control train speed and separation

Question 11

What is the Service concept of Regional/Commuter rail?

Answer 11

Serve long-distance trips, large distance between stations (low access, high speed)

Question 12

What is the service concept of Metro/heavy rail/ rapid rail

Answer 12

Serve high capacity, medium distance trips, moderate distance between stations

Question 13

What is the service concept of light rail?

Answer 13

Serve medium-distance trips, short distance between stations

Question 14

What is the service concept of Tram/streetcar?

Answer 14

Serve short-distance trips, very short distance between stations

Question 15

What is the service concept of a bus?

Answer 15

Serve medium- or short-distance trips, moderate to short distance between stations

Question 16

What is the bus route capacity?

Answer 16

Cveh*f

Question 17

What are the Goals of Network and Route Design?

Answer 17

Determine routes to serve an area, given: 
-existing road network
-land use, employment, population
-budget constrains
Determine stop/station locations
Determine hours of operation

Question 18

What are the steps in network planning?

Answer 18

1. Determine the high-frequency network minimise passenger waiting, travel time
2. Design service to complement the high-frequency network
3. consider connectivity

Question 19

What is the frequency?

Answer 19

fmin=Maximum hourly passenger load/(X.Nveh)

Where: X=load factor

Question 20

What is the optimal frequency?

Answer 20

f=SQRT((VOT*P)/(2CT))