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Altering travel demand is <br />efficiency of existing streets. <br />altered in the following ways: <br />a third way to improve the <br />Travel demand can be reduced or <br />(1) Encourage people to form carpools and vanpools for <br />journeys to work and other trip purposes. This reduces <br />the number of vehicles on the roadway and raises the <br />people carrying capability of the street system. <br />(2) Encourage the use of transit and the bicycle mode. <br />(3) Encourage industries, business, and institutions to <br />stagger work hours or establish variable work hours <br />for employees. This will reduce travel demand in peak <br />periods and spread peak travel over a longer time <br />period. <br />(4) Plan and encourage land use development or redevelopment <br />in a more travel efficient manner. <br />SYSTEM EFFICIENCY <br />Another means for altering travel demand is the development <br />of a more efficient system of streets that will better serve <br />travel desires. A more efficient system can reduce travel <br />distances, time, and cost. Improvements in system efficiency can <br />be achieved through the concept of functional classification of <br />streets and development of a coordinated major street system. <br />FUNCTIONAL CLASSIFICATION <br />Streets perform two primary functions -- traffic service and <br />land service, which when combined, are basically incompatible. <br />The conflict is not serious if both traffic and land service <br />demands are low. However, when traffic volumes are high, con- <br />flicts created by uncontrolled and intensely used abutting <br />property lead to intolerable traffic flow friction and congestion. <br />The underlying concept of the thoroughfare plan is that it <br />provides a functional system of streets which permits travel from <br />origins to destinations with directness, ease, and safety. <br />Different streets in the system are designed and called on to <br />perform specific functions, thus minimizing the traffic and land <br />service conflict. Streets are categorized as to function as local <br />access streets, minor thoroughfares, or major thoroughfares (see <br />Figure 2). <br />Local access streets provide access to abutting property. <br />They are not intended to carry heavy volumes of traffic and should <br />be located such that only traffic with origins and destinations on <br />7 <br />