§ 21-320. Traffic level; approval of traffic analysis.  


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  • (a)

    All applications for review of a major site plan in the B Business District shall be accompanied by a traffic survey and analysis prepared by a qualified traffic engineer showing that any additional vehicular movements generated by reason of the construction, expansion or alteration can be accommodated by the adjacent Streets at the peak traffic hour on the Streets without causing the Level of Service on the Streets to deteriorate to a Level of Service D or worse. Non-emergency vehicular access to and from the Business District shall be limited to Collins Avenue, to 96th Street, and to Bal Cross Drive.

    (b)

    No major site plan approval shall be issued unless or until a traffic survey and analysis meeting the requirements of subsection (a) of this section has been filed with the Building Official and considered by the Village Council as part of the public hearing.

    (c)

    For purposes of this section, the term "Level of Service" (abbreviated as "LOS") refers to the overall quality of flow at an intersection. To quantify the various Levels of Service which can be experienced, the following criteria shall apply:

    (1)

    LOS A. LOS A is the highest Level of Service which can be achieved. Under this condition, the green time available for any particular movement is never fully utilized, and no vehicle waits longer than one red indication. Typically, the approach appears quite open, turning movements are easily made, and nearly all drivers find freedom of operation, their only concern being the change that the signal will be red or turn red when they approach. Volumes are generally less than 60 percent of capacity.

    (2)

    LOS B. LOS B is representative of stable operation. An occasional vehicle will be forced to wait through more than one red indication, and many drivers will begin to feel somewhat restricted within groups of vehicles. Volumes are usually between 60 percent and 70 percent of capacity.

    (3)

    LOS C. At LOS C, although still representative of stable operation, more drivers are forced to wait through more than one red indication, and backups may develop behind turning vehicles. Most drivers are beginning to feel restricted, but not objectionably so. This is the level typically associated with urban design practice. Traffic volumes under this Level of Service are generally between 70 and 80 percent of capacity.

    (4)

    LOS D. LOS D encompasses a zone of increasing restriction approaching instability. Delays to approaching vehicles may be substantial during short peaks within the peak period, but enough slack occurs to permit periodic clearance of long lines, thus preventing excessive backups. Traffic volumes at LOS D are between 80 and 90 percent of capacity.

    (5)

    LOS E. LOS E represents the capacity of the intersection where there are likely to be long lines of vehicles waiting upstream of the intersection and delays may be great (drivers may have to wait through several red indications). Traffic volumes in excess of 90 percent of capacity are indicative of LOS E.

    (6)

    LOS F. LOS F represents jammed conditions. Backups from locations downstream or on the cross street may restrict or prevent movement of vehicles out of the approach under consideration; hence, volumes carried are not predictable.

(Ord. No. 169, § 6-10(e), 6-29-74; Ord. No. 205, § 2(D)—(G), 11-14-78; Ord. No. 298, § 3, 11-25-86; Ord. No. 2012-566, § 3, 11-20-2012; Ord. No. 612, § 2, 12-18-18)