Highway Engineering 1 lecture 1

Questão 1 de 30

1

On the Auckland Transport Website how is a road or road reserve defined?

Selecione uma ou mais das seguintes:

the area from the property boundary on one side of the road to the property boundary on the other side of the road. This includes the berm (grass verge), footpath and carriageway
the area from the foot path on one side of the road to the footpath on the other side of the road. This includes the berm (grass verge), footpath and carriageway
the berm from one side of the road, the guttering, the road, the opposite guttering to the berm on the other side of the road.
the road itself no other items included

Explicação

Questão 2 de 30

1

How many types of pavements are there?

Selecione uma das seguintes:

4
3
2
5

Explicação

Questão 3 de 30

6

Portland cement concrete (PCC) pavements are rigid pavements. Choose the correct facts about rigid pavement.

Selecione uma ou mais das seguintes:

Expensive to make due to concrete laying machinery
Are self draining due to porous properties of concrete
May or may not be laid on top of granular materials
Do not need any reinforcement due to the concrete colour strength
Does not flex under loading to accommodate traffic due to their high modulus of Elasticity
All of the above

Explicação

Questão 4 de 30

1

Flexible pavement structure flexes to accommodate traffic loads. Choose the correct facts about flexible pavements.

Selecione uma ou mais das seguintes:

Flexible pavements can be made from wood, steel or glass chips depending on the countries code of practice.
Flexible pavements are bituminous pavements and can either be chipseal or asphaltic concrete surfacing.
Flexible pavements may or may not incorporate underlying layers of stabilized or unstabilized granular materials on a prepared subgrade.
All of the above

Explicação

Questão 5 de 30

3

Semi-rigid or semi-flexible pavements are a mixture of rigid and flexible options. Choose the correct facts about this pavement type.

Selecione uma ou mais das seguintes:

An asphalt layer can overlay a PCC pavement when removing or reapiring the old PCC layer is not economical or practical?
Semi-rigid designs comprise of cement-asphaltic concrete mixture as the surfacing layer or the courses underneath the surfacing layer can be mixed withe either cement or asphalt to achieve a stronger base
Resin modified pavements (RMP) was the original term for cement asphalt composite surfacing due to the use of polymer modified cement grouting material
All of the above

Explicação

Questão 6 de 30

1

Pavement deflection under a vehicle wheel load, tensile stresses occur at the top of the pavement and compressive stresses occur at the bottom.

Selecione uma das opções:

VERDADEIRO
FALSO

Explicação

Questão 7 de 30

1

What are the components of a road pavement in order.

Selecione uma das seguintes:

Hot-mix Asphalt Surface, subgade, subbase(optional), Frost protection (as appropriate) basecourse.
Hot-mix Asphalt Surface, Base Course (maybe stabilized) Subbase (optional) Frost protection (as appropriate) subgrade
Chips, Bitumen, Frost protection (as appropriate) subbase, sub grade, Base course

Explicação

Questão 8 de 30

1

What do we need a road to do? Choose one.

Selecione uma das seguintes:

Safe, comfortable travel of vehicles and non vehicular traffic
Consider alternative environmentally sustainable designs
Serviceability- suitable for everyday use
Amenity- convenient feature accessible
Access to all lots
links to roading network- local to highways
comply with standards and plans - eg AT or NZTA
all of the above

Explicação

Questão 9 de 30

1

There are two different types of road heavy duty (Airport runways, motorways, wharves and container depots) and light duty (temporary roads and haul roads)?

Selecione uma das opções:

VERDADEIRO
FALSO

Explicação

Questão 10 de 30

1

What are the construction types of roads. Choose the correct answers.

Selecione uma ou mais das seguintes:

Unbound Crushed aggregate
Asphaltic Concrete (Bituminous bound)
Concrete
Block paving
Lime or Cement Stabilised Bases or Subgrade
Reinforced with Geo-textiles or Geo-grids
Reinforced Asphalt

Explicação

Questão 11 de 30

1

The mechanistic-Empirical Design approach seeks to explain the relationship between the loads and material properties of the pavement structure which is typically described using a mathematical model

Selecione uma das opções:

VERDADEIRO
FALSO

Explicação

Questão 12 de 30

1

The Empirical Design approach uses data from experience, experimentation or a combination of both.

Selecione uma das opções:

VERDADEIRO
FALSO

Explicação

Questão 13 de 30

1

What are the advantages of a mechanistic-empirical pavement design method?

Selecione uma ou mais das seguintes:

can be used for both existing pavement rehabilitation and new pavement construction
'it accommodates changing load types
It can better characterize materials allowing for : better utilization of new materials, Accommodation of new materials and an improved definition of existing layer properties
It accommodates environmental and aging effects of materials
It better defines the role of construction
It provides more reliable performance predictions

Explicação

Questão 14 de 30

1

The benefit of the mechanistic-empirical approach is its ability to accurately characterize insitu material, It eliminates the guess work, can be costly and new data is still developing.

Selecione uma das opções:

VERDADEIRO
FALSO

Explicação

Questão 15 de 30

1

Who is the controlling authority for NZ state highways?

Selecione uma das seguintes:

Australia/New Zealand transport Authority ANZTA
Department of Transport and Main Roads New Zealand (TMRNZ)
The New Zealand Transport Agency (NZTA)
The New Zealand Transport Authority (NZTA)

Explicação

Questão 16 de 30

1

The local authorities are responsible for local roads. In Auckland the Auckland Transport (AT) controls all local roads. It is a council controlled organization (CCO)

Selecione uma das opções:

VERDADEIRO
FALSO

Explicação

Questão 17 de 30

1

Choose the correct Road Hierarchy functions:

Selecione uma ou mais das seguintes:

The conventional road hierarchy classifies roads/streets according to their movement and access functions
roads/streets are designated into different groups or classes according to the type of service each group is intended to provide
The hierarchical classification system is regarded as a fundamental tool for urban development and road network design and management

Explicação

Questão 18 de 30

1

What are the Auckland Hierarchy components for Arterials

Selecione uma das seguintes:

Motorways
Strategic Arterials
Primary Arterials
Secondary Arterials
All of the above

Explicação

Questão 19 de 30

1

What are the Auckland Hierarchy components for Non-arterial roads?

Selecione uma das seguintes:

Collector/connector roads
Local streets
lanes & service lanes
shared space/shared zones
all of the above

Explicação

Questão 20 de 30

1

What are the factors Influencing road design?

Selecione uma ou mais das seguintes:

Money, government policy, how fast the prime minister needs to travel, the need for animals to cross.
Design vehicles, design speed, road user characteristics, functional classifications
the amount of bridges per road, how many pedestrian crossings are needed, the lighting systems, toll roads
Traffic volumes by type %heavy commercial vehicles, bus route and network, cycle volumes and network, land use context

Explicação

Questão 21 de 30

1

Collectors/distributors types of roads collect tolls and traffic fines and distribute amongst the road funding

Selecione uma das opções:

VERDADEIRO
FALSO

Explicação

Questão 22 de 30

1

Local roads/streets provide vehicle access to developments and residential properties, access for emergency service vehicles, pedestrian and cyclist movements, neighbourhood social interactions, aesthetic values to the neighborhood, speed is kept low i.e 50km/h

Selecione uma das opções:

VERDADEIRO
FALSO

Explicação

Questão 23 de 30

1

Levels of Temporary Traffic Management (TTM) are: (choose all those that apply)

Selecione uma ou mais das seguintes:

Level LV: low volume roads (AADT less than 500vpd)
Level 1- low to moderate volume roads(AADT 500 to10,000vpd)
Level 2 - high volume Roads (AADT greater than 10000 vpd
level 3 - high volume, high speed multi-lane roads Expressways and Motorways (AADT greater than 10, 000 vpd and speed greater than 75km/h)

Explicação

Questão 24 de 30

1

How a road works: Pressure is exerted via a vehicle load on the surfacing layer. The pressure is distributed through the Basecourse and Subbase layers so the Pressure is reduced to a level that causes minimal subgrade deformation.

Selecione uma das opções:

VERDADEIRO
FALSO

Explicação

Questão 25 de 30

1

Choose the correct facts for the Subgrade:

Selecione uma ou mais das seguintes:

It is the insitu soil beneath the road
It has requirements of: strength-to support road loads, Drainage- to shed water, line and level-correct alignment and level for the road, and smooth-no bumps and hollows
Subgrade may be soft so options are: thicker sub-base layer, sub-grade improvement by drainage, preloading, lime stabilization, cement stabilization
The layer just below the bituminous surface

Explicação

Questão 26 de 30

1

the Subbase layer is between the base course and the subgrade and functions primarily as a structural support

Selecione uma das opções:

VERDADEIRO
FALSO

Explicação

Questão 27 de 30

1

Choose the facts for the subbase layer:

Selecione uma das seguintes:

Minimizes the intrusion of fines from the subgrade into the pavement structure
Improves Drainage
Minimizes frost action damage
provides a working platform for construction
Generally consists of lower quality materials than the base course but better than the subgrade soil
A subbase course is not always needed or used
All of the above

Explicação

Questão 28 de 30

1

Basecourse, is the top of pavement, structural support to wheel loads, distributes load to subbase, minimum layer of 100mm and is compacted to "stone mosaic" finish not entirely smooth as needs to connect the surface layer with top of base course

Selecione uma das opções:

VERDADEIRO
FALSO

Explicação

Questão 29 de 30

1

What is surfacing-chipseal?

Selecione uma das seguintes:

Damaged pieces of road that has "chipped off"
chip encased in binder, first coat seals-grade 4 in lower viscosity bitumen, second coat seals- grade 2 or 43 chip with 180/200 bitumen, Alternative-seal with locking coat (wet or dry)
Bitumen with M 40 agreggate. Double coated for protection and long lasting coverage.

Explicação

Questão 30 de 30

1

what are thicker layers 100 to 150 mm semi rigid pavement,not used much in NZ rural areas as it is too expensive, waterproof, does not need chip seal underneath, tack coat usually used- called?

Selecione uma das seguintes:

Sufacing- BC
surfacing-CD
surfacing AC

	Criado por Pauline Leota aproximadamente 9 anos atrás

Lecture 1

Highway Engineering 1 lecture 1

Questão 1 de 30

On the Auckland Transport Website how is a road or road reserve defined?

Selecione uma ou mais das seguintes:

Explicação

Questão 2 de 30

How many types of pavements are there?

Selecione uma das seguintes:

Explicação

Questão 3 de 30

Portland cement concrete (PCC) pavements are rigid pavements. Choose the correct facts about rigid pavement.

Selecione uma ou mais das seguintes:

Explicação

Questão 4 de 30

Flexible pavement structure flexes to accommodate traffic loads. Choose the correct facts about flexible pavements.

Selecione uma ou mais das seguintes:

Explicação

Questão 5 de 30

Semi-rigid or semi-flexible pavements are a mixture of rigid and flexible options. Choose the correct facts about this pavement type.

Selecione uma ou mais das seguintes:

Explicação

Questão 6 de 30

Pavement deflection under a vehicle wheel load, tensile stresses occur at the top of the pavement and compressive stresses occur at the bottom.

Selecione uma das opções:

Explicação

Questão 7 de 30

What are the components of a road pavement in order.

Selecione uma das seguintes:

Explicação

Questão 8 de 30

What do we need a road to do? Choose one.

Selecione uma das seguintes:

Explicação

Questão 9 de 30

There are two different types of road heavy duty (Airport runways, motorways, wharves and container depots) and light duty (temporary roads and haul roads)?

Selecione uma das opções:

Explicação

Questão 10 de 30

What are the construction types of roads. Choose the correct answers.

Selecione uma ou mais das seguintes:

Explicação

Questão 11 de 30

The mechanistic-Empirical Design approach seeks to explain the relationship between the loads and material properties of the pavement structure which is typically described using a mathematical model

Selecione uma das opções:

Explicação

Questão 12 de 30

The Empirical Design approach uses data from experience, experimentation or a combination of both.

Selecione uma das opções:

Explicação

Questão 13 de 30

What are the advantages of a mechanistic-empirical pavement design method?

Selecione uma ou mais das seguintes:

Explicação

Questão 14 de 30

The benefit of the mechanistic-empirical approach is its ability to accurately characterize insitu material, It eliminates the guess work, can be costly and new data is still developing.

Selecione uma das opções:

Explicação

Questão 15 de 30

Who is the controlling authority for NZ state highways?

Selecione uma das seguintes:

Explicação

Questão 16 de 30

The local authorities are responsible for local roads. In Auckland the Auckland Transport (AT) controls all local roads. It is a council controlled organization (CCO)

Selecione uma das opções:

Explicação

Questão 17 de 30

Choose the correct Road Hierarchy functions:

Selecione uma ou mais das seguintes:

Explicação

Questão 18 de 30

What are the Auckland Hierarchy components for Arterials

Selecione uma das seguintes:

Explicação

Questão 19 de 30

What are the Auckland Hierarchy components for Non-arterial roads?

Selecione uma das seguintes:

Explicação

Questão 20 de 30

What are the factors Influencing road design?