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Past Year Questions: Highway Maintenance | Transportation Engineering - Civil Engineering (CE) PDF Download

Question 1. As per IRC : 37-2012, in order to control subgrade rutting in flexible pavements, the parameter to be considered is    [2018 : 1 Mark, Set-II]
(a) horizontal tensile strain at the bottom of bituminous layer
(b) vertical compressive strain on top of subgrade
(c) vertical compressive stress on top of granular layer
(d) vertical deflection at the surface of the pavement
Answer: 
(b)
Solution:
As per IRC : 37-2012
Past Year Questions: Highway Maintenance | Transportation Engineering - Civil Engineering (CE)
where N = No. of cumulative standard axle
v = Vertical strain in the subgrade
Past Year Questions: Highway Maintenance | Transportation Engineering - Civil Engineering (CE)
As evident from expression, vertical strain in subgrade is the only variable considered for rutting in flexible pavements.

Question 2. Road roughness is measured using    [2012 : 1 Mark]
(a) Benkelman beam
(b) Bump integrator
(c) Dynamic cone penetrometer
(d) Falling weight deflectormeter

Answer: (b)
Solution: 
Bankelmann beam is used to measure the deflection of a flexible pavement under moving wheel loads.
Falling weight deflectometer is used to estimate pavement structural capacity. Bump integrater is used to measure road roughness.

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FAQs on Past Year Questions: Highway Maintenance - Transportation Engineering - Civil Engineering (CE)

1. What are the common maintenance tasks performed on highways?
Ans. Common maintenance tasks performed on highways include repairing potholes, resurfacing roads, clearing debris, maintaining signage and road markings, and ensuring proper drainage.
2. How often should highways be inspected for maintenance purposes?
Ans. Highways should be regularly inspected for maintenance purposes. The frequency of inspections may vary depending on the specific highway and its condition, but it is generally recommended to conduct inspections at least once a year.
3. What measures are taken to ensure the safety of highway maintenance workers?
Ans. Safety measures for highway maintenance workers include wearing high-visibility clothing, using appropriate personal protective equipment, implementing traffic control measures, providing training on safe work practices, and conducting regular safety audits and inspections.
4. How is funding for highway maintenance typically allocated?
Ans. Funding for highway maintenance is typically allocated through a combination of federal, state, and local sources. These funds are often derived from taxes, tolls, and other user fees specifically designated for transportation infrastructure maintenance.
5. How does extreme weather impact highway maintenance?
Ans. Extreme weather conditions, such as heavy rainfall, snow, or extreme temperatures, can have a significant impact on highway maintenance. These conditions can cause pavement deterioration, increase the frequency of potholes, and require additional efforts in snow removal and de-icing operations. Highway maintenance teams must be prepared to respond promptly to weather-related challenges to ensure safe and efficient road conditions.
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