Engineering Survey Instruments Overview
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Questions and Answers

What year was E.O. No. 113 implemented?

  • 1987
  • 1960
  • 1955 (correct)
  • 1950

    • National secondary roads are classified as 'national aid' roads.

    False

    Which department was given the power to classify roads and highways in 1987?

    Department of Public Works and Highways (DPWH)

    In June ______, a memorandum was approved outlining the criteria for road functional classification.

    <p>2009</p> Signup and view all the answers

    Match the following classifications of roads with their definitions:

    <p>National Primary Arterial Road = Further categorized into North-South Backbone, East-West Lateral, Other Roads of Strategic Importance National Secondary Roads = Classified roads that serve as supportive avenues to primary roads National Aid Roads = Provincial and city roads that may be incorporated into the national highway system</p> Signup and view all the answers

    Which of the following is NOT a classification of national roads mentioned?

    <p>National Local Roads</p> Signup and view all the answers

    The criteria for road classification has remained unchanged since 1955.

    <p>False</p> Signup and view all the answers

    What were the two classifications of national roads established by E.O. No. 113?

    <p>National primary roads and national secondary roads</p> Signup and view all the answers

    What was the highest annual increase in national road length from 2020 to 2021?

    <p>3.42%</p> Signup and view all the answers

    The total national road length increased by 101.42 km in 2022.

    <p>True</p> Signup and view all the answers

    What percentage of the Philippine national road network is predominantly concrete surfacing?

    <p>65.04%</p> Signup and view all the answers

    In CY 2022, asphalt-surfaced roads constitute _____ km of the total road network.

    <p>11,654.17</p> Signup and view all the answers

    Match the following types of road surfaces with their percentages of the total national roads:

    <p>Concrete = 65.04% Asphalt = 33.93% Gravel = 0.97% Earth = 0.06%</p> Signup and view all the answers

    Which national road classification saw the highest annual increase in length in the data presented?

    <p>Primary</p> Signup and view all the answers

    Gravel surfaced roads comprise more than 1% of the total national roads.

    <p>False</p> Signup and view all the answers

    What is the total length of the Philippine national road network in km?

    <p>34,352.40</p> Signup and view all the answers

    What is the primary function of a sextant?

    <p>Measurement of angles</p> Signup and view all the answers

    Political considerations always prioritize economic considerations in engineering survey planning.

    <p>False</p> Signup and view all the answers

    What does an altimeter measure?

    <p>The altitude of an object above a fixed level.</p> Signup and view all the answers

    The __________ is used for measuring and laying off angles in engineering surveying.

    <p>semicircumfentor</p> Signup and view all the answers

    Match the following engineering survey instruments with their functions:

    <p>Altimeter = Measures altitude above a fixed level Telescope = Observation of remote objects Surveyors’ Level = Measures height of distant points Alidade with Plane Table = Drawing lines of sight</p> Signup and view all the answers

    Which of the following aspects is NOT considered in route selection for highway projects?

    <p>Weather conditions</p> Signup and view all the answers

    Aerial surveying is part of the preliminary survey process for highway projects.

    <p>True</p> Signup and view all the answers

    What is the primary objective during the reconnaissance phase of highway surveying?

    <p>To identify possible routes worthy of further examination.</p> Signup and view all the answers

    The _____ survey includes centerline stakeout and profile and cross-section survey.

    <p>Final Location</p> Signup and view all the answers

    Match the survey types to their purposes:

    <p>Reconnaissance Survey = Identifying possible routes Final Location Survey = Defining road alignment Preliminary Survey = Gathering initial data Route Selection = Choosing the best route options</p> Signup and view all the answers

    What is the significance of the gaps in the numbering system for routes?

    <p>They allow for future expansion of the national road network.</p> Signup and view all the answers

    The Route Numbering for Expressways begins with the letter 'R'.

    <p>False</p> Signup and view all the answers

    What series is typically used for Secondary Roads in Bohol?

    <p>85 series</p> Signup and view all the answers

    Route Nos. 413 - 419 are left as __________ for future use.

    <p>gaps</p> Signup and view all the answers

    Match the following states/regions with their route numbering:

    <p>Bohol = 85 series Catanduanes = 65 series Expressways = 'E' prefix National Capital Region = Dense network</p> Signup and view all the answers

    What does the letter 'E' signify in the context of expressways?

    <p>Expressway standard design</p> Signup and view all the answers

    Route Numbering for Secondary Roads is applied strictly across all regions.

    <p>False</p> Signup and view all the answers

    How often is a review of the road network expected to occur?

    <p>every six years</p> Signup and view all the answers

    Study Notes

    Engineering Survey Instruments

    • Old Survey Instruments: Altimeter, Sextant, Alidade with Plane Table, Telescope, Surveyors’ Level, Semicircumferentor
    • Route Selection: Narrowing down choices to one or two best routes considering RROW, Land Use, Length, Alignment and Grade, Waterway Crossings, Construction Cost and User Benefit Ratio.

    Survey for Highway Projects

    • Procedures: Reconnaissance, Route Selection, Preliminary Survey, Office Planning, Final Location Survey
    • Reconnaissance: Rapid examination of the terrain to identify possible routes and eliminate the least viable options.
      • Aided by available maps, aerial inspection, photographs, and site inspection.
      • Alternative methods include Digital Photogrammetry, LiDAR, IFSAR, and UAV
    • Route Selection: Narrowing down the choice of route to one or two best locations within the general route.
      • Cost-benefit ratio is established for each route.
      • Field verification is required before final selection.
    • Preliminary Survey: Includes Aerial Surveying and Mapping, Ground Survey.
    • Office Planning: Best line is plotted on the topographic map.
    • Final Location Survey: Includes Centerline Stakeout, Profile and Cross-section, Surface Drainage Survey, Right-of-Way Survey, Parcellary Survey, As-Staked Survey, and As-Built Survey.

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    Related Documents

    Philippine National Road Network PDF

    Description

    Explore the diverse survey instruments used in engineering. This quiz covers old instruments like the Altimeter and Sextant, along with modern procedures for highway project surveys, including reconnaissance and route selection. Test your knowledge on both traditional and contemporary surveying techniques.

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