Highway Engineering 1 lecture 2

Question 1 of 29

1

What are key differences between an Urban Road(UR) and a Rural Road (RR)?

Select one or more of the following:

a UR has a kerb and channel
An UR is black with grey stones and the RR is grey with black stones
An UR has a footpath and a RR has none
A RR has a subsoil drain
The RR has been strengthen to take live stock walking on it
The RR has a feathered edge

Explanation

Question 2 of 29

1

What are the similarities between a Urban Road and a Rural Road?

Select one of the following:

Camber-usually 3%. under channel drains, waterproofing surface, road boundaries, pavement layers
Camber 6%, footpaths, berms, kerbs and pavement layers
There are no similarities between a Urban road and a rural road

Explanation

Question 3 of 29

1

Other differences between urban roads and rural roads are: cost, environmental issues, design, maintenance, surface water management, resource consent process

Select one of the following:

True
False

Explanation

Question 4 of 29

1

What are the road user expectations when it comes to the design of a road?

Select one or more of the following:

Direct route between two points
Useable in all weather conditions
Provides a smooth comfortable surface
allows traffic to ravel safely at a reasonable uniform cruising speed
Is pleasing to the eye and has lots of nice scenery
has petrol stations every 500m

Explanation

Question 5 of 29

1

What are the consultation requirements?

Select one of the following:

Communicating with the community even though the construction is a Permitted activity
Considering Risks
Include time, cost implications, resources and raising community expectations
Take into consideration the principles of the Treaty of waitangi
all of the above

Explanation

Question 6 of 29

1

What is the best practice for consultation

Select one of the following:

Hold initial discussions with community leaders, key agencies and local government politicians to gauge the level of understanding and support for the proposed project
Clearly state the issues that are being consulted on
Disseminate information and educational material to the community on the rationale for the project
Included community leaders etc in the site selections process and scoping of the community interest
Seek legal advice - compliance with the ACT is crucial
all above

Explanation

Question 7 of 29

1

There are 18 Factors to consider for a new alignment. Learn 5 of them for the test

Select one of the following:

1. keep grades and curvature to the minimum necessary to satisfy the service requirements of the highway
2. Always provide adequate sight distance and avoid sudden changes in sight distance especially near intersections
3. Avoid having a sharp horizontal curve on or adjacent to a pronounced vertical curve
4. Locate the highway wherever possible along property boundaries not through the middle of blocks of land particularly farm land
5. Where it is practical maximize use of existing highway alignment to reduce land purchase costs
6. Avoid areas or objects of historical, recreational or cultural significance
7. Never have two roads intersecting near a bend or at the top or bottom of a hill
8. Avoid at grade intersections with railway lines. If possible cross the railway where it enters a cutting
9. Keep road and stream crossing to a sensible minimum and if possible have crossing at right angles
10. Avoid horizontal curves in bridges, tunnels or culvert structures
11. Avoid where possible unstable ground prone to erosion or land slips
12. Avoid low lying land prone to flooding
13. Avoid if possible locations with rock close to the surface
14. In hilly terrain the highway should cross ridges at their lowest point. Avoid creating severe breaks n the natural skyline
15. Minimize destruction of natural forest areas where some felling is necessary locate the road on a curve to preserve an unbroken background and minimize visual impact.
16. Avoid placing a road at right angles to natural drainage pattern
17. Balance volumes of cut and fill within a section of road to avoid need to purchase or tip large quantities of fill
18. To relieve the monotony of driving on a long straight road it is an advantage to site it so as to give a view of some prominent feature ahead.
All of the above

Explanation

Question 8 of 29

1

The highway location process is an iterative (repetitive) one where a design is gradually refined until the most suitable location is decided upon.

Select one of the following:

True
False

Explanation

Question 9 of 29

1

The highway location process is:

Select one of the following:

1. choose site
2. buy the land
3. decide where to place the road
4. Draw it on a map
5. Take it to council for approval
1. Fix end points of alignment
2. Examine the region containing both end pints and all feasible routes between them
3. Decide on a number of broad bands in which to concentrate further investigations (8 to 16km wide for major motorway)
4. Narrow bands down to corridors 3-8kms wide
5. Compare three corridors in detail and select the best
6. Generate a route within the selected corridor 1-1.5km wide
7. Search route area and locate one or more possible alignments up to 30 m wide
8. Select final alignment

Explanation

Question 10 of 29

1

What are the elements of a Roadway

Select one or more of the following:

Lane
Median
Traffic Islands
Right and left turn lanes
Median openings
Shoulder
Carriageway

Explanation

Question 11 of 29

1

Design Parameters: What do we need to consider in designing a road?

Select one or more of the following:

Road Classification, Traffic volumes and composition,
Design speed, design vehicle, Environment,
Access, Drainage, Utility services

Explanation

Question 12 of 29

1

A road design needs to consider horizontal, vertical alignment and the cross section

Select one of the following:

True
False

Explanation

Question 13 of 29

1

The desirable standard lane width is 3.5 and up to 3.7m for freeways or motorways

Select one of the following:

True
False

Explanation

Question 14 of 29

1

The minimum lane width is 3.5 for standard roads and 3.0 for Motorways

Select one of the following:

True
False

Explanation

Question 15 of 29

1

What is the camber on a cross section of a chip Seal road

Select one of the following:

6%
2%
3%

Explanation

Question 16 of 29

1

Horizontal curves should be of the same type, have the same design speed or gradually reduce (<10%/cure)over the length of the road

Select one of the following:

True
False

Explanation

Question 17 of 29

1

Compounded curves are to be avoided What are compound curves

Select one of the following:

different radii turning in the same direction
two curves in same direction with little or no straight in between
to curves turning in opposite directions with little or no straight in between

Explanation

Question 18 of 29

1

Broken back curves are to be avoided what are broken back curves?

Select one of the following:

different radii turning in the same direction
two curves turning in the same direction with little or no straight in between
two curves turning in opposite directions with little or no straight in between

Explanation

Question 19 of 29

1

Reverse curves are to be avoided when designing a road, what is a reverse curve?

Select one of the following:

different radii turning in same direction
two curves turning in same direction with little or no straight in between
two curves turning in opposite directions with little or no straight in between

Explanation

Question 20 of 29

1

What is superelevation on a road

Select one of the following:

the amount by which the outer edge of a curve on a road or railway is banked above the inner edge
the camber of 3%

Explanation

Question 21 of 29

1

A transition curve smooths travel around a curve of speeds less than 60km/h, radius of curve greater than 500m and Shift greater than 0.3m

Select one of the following:

True
False

Explanation

Question 22 of 29

1

What is an intersection in the road

Select one or more of the following:

An intersection is the junction at grade (that is to say, on the same level) of two or more roads either meeting or crossing.
An intersection may be three-way (a T junction or Y junction – the latter also known as a fork), four-way (a crossroads), or have five or more arms.

Explanation

Question 23 of 29

1

What is sight distance?

Select one of the following:

The distance it takes in the dark to see an elephant
The distance at which a driver will be able to perceive an object of a specific height on the road ahead and safely stop their vehicle before it reaches that object

Explanation

Question 24 of 29

1

A sag curve is determined by the headlight sight distance not just a sag at the bottom of the road

Select one of the following:

True
False

Explanation

Question 25 of 29

1

What are the grades for road designs?

Select one or more of the following:

not steeper than 10% average or 12.5% maximum
lot access can be up to 1V:5H
Minimum grades for roads with kerb and channel = 0.3%, Unkerbed roads =0.5% Unkerbed roads with side drainage = 0%

Explanation

Question 26 of 29

1

a vertical curve is the curve on the road design running the length of the road vertical curves can be on the top of a crest or the sag at the bottom.

Select one of the following:

True
False

Explanation

Question 27 of 29

7

The Design process has 7 Steps Learn all 7 steps

Select one or more of the following:

1. Identify Controls
2. Prepare Horizontal Alignment
3. Select grading points
4. Prepare longitudinal section
Show natural GL and Grading Points
Include Intersections,structures, services, and crossings
5. Prepare Trial grade-line
Consider controls
try to coordinate horizontal and vertical alignments
6. Calculate earth works quantities
7. Adjust vertical alignment so that :
Controls are met
Earthworks are minimized

Explanation

Question 28 of 29

1

Controls are the factors that influence the design

Select one of the following:

True
False

Explanation

Question 29 of 29

1

What are factors that influence design levels?

Select one of the following:

operating speed, required sight distances, overtaking requirements, drainage systems
Earthworks, topography, flood levels, water table levels
Geotechnical conditions, existing intersections, property entrances
overpasses and underpasses, pedestrian access, services
All of the above

	Created by Pauline Leota about 9 years ago

Quiz for lecture 2 highway Engineering

Highway Engineering 1 lecture 2

Question 1 of 29

What are key differences between an Urban Road(UR) and a Rural Road (RR)?

Select one or more of the following:

Explanation

Question 2 of 29

What are the similarities between a Urban Road and a Rural Road?

Select one of the following:

Explanation

Question 3 of 29

Other differences between urban roads and rural roads are: cost, environmental issues, design, maintenance, surface water management, resource consent process

Select one of the following:

Explanation

Question 4 of 29

What are the road user expectations when it comes to the design of a road?

Select one or more of the following:

Explanation

Question 5 of 29

What are the consultation requirements?

Select one of the following:

Explanation

Question 6 of 29

What is the best practice for consultation

Select one of the following:

Explanation

Question 7 of 29

There are 18 Factors to consider for a new alignment. Learn 5 of them for the test

Select one of the following:

Explanation

Question 8 of 29

The highway location process is an iterative (repetitive) one where a design is gradually refined until the most suitable location is decided upon.

Select one of the following:

Explanation

Question 9 of 29

The highway location process is:

Select one of the following:

Explanation

Question 10 of 29

What are the elements of a Roadway

Select one or more of the following:

Explanation

Question 11 of 29

Design Parameters: What do we need to consider in designing a road?

Select one or more of the following:

Explanation

Question 12 of 29

A road design needs to consider horizontal, vertical alignment and the cross section

Select one of the following:

Explanation

Question 13 of 29

The desirable standard lane width is 3.5 and up to 3.7m for freeways or motorways

Select one of the following:

Explanation

Question 14 of 29

The minimum lane width is 3.5 for standard roads and 3.0 for Motorways

Select one of the following:

Explanation

Question 15 of 29

What is the camber on a cross section of a chip Seal road

Select one of the following:

Explanation

Question 16 of 29

Horizontal curves should be of the same type, have the same design speed or gradually reduce (<10%/cure)over the length of the road

Select one of the following:

Explanation

Question 17 of 29

Compounded curves are to be avoided What are compound curves

Select one of the following:

Explanation

Question 18 of 29

Broken back curves are to be avoided what are broken back curves?

Select one of the following:

Explanation

Question 19 of 29

Reverse curves are to be avoided when designing a road, what is a reverse curve?

Select one of the following:

Explanation

Question 20 of 29

What is superelevation on a road