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<br />FIGURE 2-23 radius can accommodate SUVs and other large passenger vehicles as well � ail
<br />Circularturnarounds. commercialand servicevehicleswith a regularneed to visit residentialstreets,
<br />including school buses, all types of delivery trucks, emergencyvehicles, solid
<br />wastecollectiontrucks, and repairservicesvehicles. Anoff-centerturnaround
<br />creates visual variety and makes turning easier (Figure 2-26).
<br />To reduce the amount of paving, turnarounds may have centerislands. Such
<br />�'I�EdFP� 2-24
<br />AT- orY shaned turnaround may
<br />be used for shorter streets with up
<br />to ten houses.
<br />�
<br />34 Residential Streets
<br />turnaroundsshould provide adequate maneuverspace� minimum of 18 f�e�--
<br />around the island (Figure2 27a}.One option for e�editing turning movements is
<br />to make the street pavement wider at the rear of the center island (Figure � 27b�.
<br />The use of �= or Y-shaped turnarounds requires all vehicles to make a back-
<br />€ng�up movement. This inconvenience can be justified if traffic volume on the
<br />turnaround is particularly low, as on a dead-end street serving ten or fewer
<br />homes with dnveways. T- or Y shapec� turnarounds offer several advantages:
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