Four-Lane Undivided Highways
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A 4-lane undivided highway is the narrowest highway on which each traffic lane is intended to be used by traffic in one direction and passing the accomplished on lanes not subject to use by opposing traffic. The ability to pass without traveling in the lane of opposing traffic results in a freer and smoother operation and a large increase in highway ______ over that of two-lane highways.

capacity

Median of 1.20 to 1.80 meters wide are acceptable under restricted condition, but whenever feasible, medians should be made 4.50 to 18.50 meters wide and preferably wider to obtain full advantage of traffic separated and to fit intersection design at ______.

crossroads

Undivided highways with four or more lanes are most applicable in ______ and sub-urban areas where there is concentrated development of adjacent land.

urban

Although highways with widely separated roadways may be particularly suitable to certain topographic conditions, there are other advantages which may be derived among which are easy vehicle operation, pleasing appearance and better ______.

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

Where there is appreciable length of a widely divided highway, and occasional open view between the two roadways is desirable to make evident their ______ operation.

<p>one-way</p> Signup and view all the answers

The ability to pass without traveling in the lane of opposing traffic results in a freer and smoother operation and a large increase in highway ______ over that of two-lane highways.

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

An important pre-requisite for the selection of traffic and environmental improvements to streets is to find a satisfactory balance between the requirements of accessibility and ______.

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

The basic principle of a functional road classification system is to ensure that each road is able to serve its proper ______.

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

The arterial road network should provide sufficient capacity and directness to accommodate through traffic movement ______ and efficiently.

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

Introducing restrictions in the local street system helps to ______ through traffic.

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

The right-of-way is a general term denoting land, property, or interest acquired and reserved for ______ purposes.

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

A technique that can assist in the planning of improvement is to classify roads according to their basic ______.

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

One means of minimizing traffic congestions in a radial system is to provide ______ streets or avenues to connect the radial route.

<p>one-way</p> Signup and view all the answers

Through Streets or Through Highway give vehicular traffic ______ right of way.

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

A Parkway is an arterial highway for ______ traffic.

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

A Freeway is an expressway with full control of ______.

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

Circumferential highways connect the radial roads to prevent passing through the ______ of the city.

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

Highway is a general term denoting a public way for the purpose of ______ travel.

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

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