What does the term RL mean in construction?

Reduced level ( RL ): this is the height or elevation above the point adopted as the site datum for the purpose of establishing levels. To establish the required depths for a drainage system you need to work from the datum point. The datum is taken as a reduced level of 10,000.

What does RL stand for in surveying?

Reduced level. From Wikipedia, the free encyclopedia. Relative level in surveying refers to equating elevations of survey points with reference to a common assumed datum.

What does RL stand for?

Acronym Definition
RL Rugby League
RL Real Life (as opposed to the Internet)
RL Reinforcement Learning
RL Responsabilidad Limitada (Guatemala)


How do you calculate RL levels?

Once you have taken all the levels you want, you will need to calculate the actual height values, or reduced levels ( RL ) by subtracting each one from the instrument height (IH). This gives you the ‘real’ height of the ground at the base of the staff.

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What is RL in property?

RL stands for Reduce Level. It means you will be the owner of 1600 sq-ft property but you have to construct the house/flats within 1400 sq-ft. 200 sq-ft you have to leave for the road.

What is the difference between RL and FFL?

Hello and welcome to Just Answer. I don’t see it that often but engineers and surveyors use R.L. for Relative Level or Reduced Level. It is a measurement of height taken from some known datum. F.F.L is First Floor Level.

What does RL mean in gaming?

Real life. RL is an acronym that stands for “Real life,” which refers to the real world as opposed to the virtual online world. It is often used online in chat rooms and when gaming.

How do you take rl in a survey?


  1. Set up the leveling instrument at Level position 1.
  2. Hold the staff on the Datum ( RL +50 m) and take a reading.
  3. Move the staff to A and take a reading.
  4. Move the staff to B and take a reading.
  5. Move the staff to C and take a reading.
  6. Move the staff to D and take a reading.

What is TBM level?

Temporary Bench Mark ( TBM ) – a point of known height above a pre-defined level. This level is not absolute and is defined locally by the surveyor for the purpose of the survey.

What is RL length?

Total root length ( RL ) was measured as the distance along the long axis of the root from the cemento-enamel junction to the apex. It was divided into three equal parts (cervical, middle, and apical), the root length of each part being 1/3 RL.

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What is RL leave?

Restricted holiday means a holiday that is optional, and it is the discretion of the employee whether they want to take leave on that particular day or not.

What does RL mean in school?

RL Education Abbreviation

2 RL Read and Look Development, Study, Learning
2 RL Reading Literary Grade, Standard, Reading
2 RL Reflective Learner Learning, Skill, Technology
1 RL Randall Library


What is Rise and Fall method?

Rise and Fall Method is the method of calculating the difference in elevation between consecutive points in levelling work. Some of the points you have to know before starting numerical are: Back sights: The first reading after seeing the instrument is called back sights.

What are the three types of leveling readings?

Types of Leveling in Surveying

  • Direct leveling.
  • Trigonometric leveling.
  • Barometric leveling.
  • Stadia leveling.

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