rigure Q3 shows the cross section of an existing road in a flat rural area. a) Briefly explain the function of FIVE (5) geometric element within the formation width shown in the figure. b) If a construction of geometric improvement is proposed due to traffic congestion happening in that area (ADT > 10000). i. Specify the geometric design element listed in Table Q3. The total formation is 3 m wider than the existing road. Table Q3: Geometric Design Criteria Design Element Road Classification Specification Access control Area Type Lane width Shoulder width Median width (minimum) Median width (Desirable) Marginal Strip width ii. Illustrate the cross section of the proposed design complete with label and dimension.

rigure Q3 shows the cross section of an existing road in a flat rural area. a) Briefly explain the function of FIVE (5) geometric element within the formation width shown in the figure. b) If a construction of geometric improvement is proposed due to traffic congestion happening in that area (ADT > 10000). i. Specify the geometric design element listed in Table Q3. The total formation is 3 m wider than the existing road. Table Q3: Geometric Design Criteria Design Element Road Classification Specification Access control Area Type Lane width Shoulder width Median width (minimum) Median width (Desirable) Marginal Strip width ii. Illustrate the cross section of the proposed design complete with label and dimension.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Highway Surveys and Location

Surveying is an operation in the civil engineering domain that requires collecting and identifying data regarding an area of land and topography. The data that is collected can be helped to plan and undertake the construction process. Civil engineers perform surveys to gather three-dimensional information regarding a particular area. Engineers specify several points on the surface of the earth and relationship between points, and the distance and angles between the points are evaluated. The data from this evaluation guides in drawing plans regarding buildings and structures.

Question

Formation width
Varies
Veries
Varies
1500 1500
6500
3000
6500
1500 1500
Varies
Carriage way
Carriege way
250
Median edge/
shyness střip
250
Median edge/
shyness strip
Ç Proposed
3.5%
3.5%
3%
3%
2.5%
2.5%
Top soil-
BC 40mm-
DBM 100mm
Embankment filI
Selected Eorth
Selected Eorth
WMM 250mm
GSB 200mm
Subgrade 500mm
Figure Q3: Typical Cross section for four-lane road
ROW
-Ref. Drainage dwg.
Earthen shoulder
Paved shoulder
Paved shoulder
Earthen shoulder
Ref. Drainage dwg.

Figure Q3 shows the cross section of an existing road in a flat rural area.
a) Briefly explain the function of FIVE (5) geometric element within the formation
width shown in the figure.
b) If a construction of geometric improvement is proposed due to traffic congestion
happening in that area (ADT > 10000).
i. Specify the geometric design element listed in Table Q3. The total
formation is 3 m wider than the existing road.
Table Q3: Geometric Design Criteria
Design Element
Road Classification
Specification
Access control
Area Type
Lane width
Shoulder width
Median width (minimum)
Median width (Desirable)
Marginal Strip width
ii.
Illustrate the cross section of the proposed design complete with label
and dimension.

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