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J '] Recommended Shared Parking Method Based upon survey findings. a melhodology was developed to determine parking demand under mixed-use development conditions. This mel hodol- og)' is ulli\'(:rsal in its application and flexible l'llIHlglt to incorporate a(!iustment factors as necessary (() suit specific policies. programs, and market conditions. [I involves Four basic steps that may be applied, with appropriate background information. to an existing or proposed pn~ject. Figure 7 illustrates I he organi- zation and flow of work, The four basic steps are: Step 1: IlIili(/IIJ/'I!jt'{'1 HI'l'il'il'-inwh'es the si/,ing and functional relatiollShip of pn~iect land uses based upon market resea rch. si tt' const rain IS. et L Step 2: Pmk IJ(/)'killg FMIIJ)' '-\rljllslll/l'IIIS-inl'Olves the selection of appropriate peak parking alulmulatioll factors for each land use. and the a<!iustmellt of each factor to reflect site-specific factors such a:i tramit use and capti\'e markets, Step 3: /l(ll/),~" ,4('('Il1l1l/llIli(l1/ Al/ulysis-in\'()I\'l:s the houri)". dait\,. and seasonal estilll;ltion of parkillg ac- cumulation for each component land use. Step 4: S/iu)'('(1 Purkil/g I':slillluli(ll/-inwh'es the houri)". dail)", and seasonal estimation of parkillg ac- cUlllulation for the t'ntire project. The method cau use factors and relationships de- \'eloped h)" this research or input from other anal)"- ses, The tatter could include data 10 modify tII1it parking factors or other charactl'ristics anci market anal)"ses, The method is designed to be sequential. but it can be Hsed in an iterati\'e fashion to test the impact of alternati\'e de\'eloplllent, plans. assump- tions. or policies. I P.J -1 J Implementing Shared Parking A number of factors must he considered in order 10 insure eHicient design. operation. and manage- ment of shared parking facilities. Tl,e research also examined these factors in detail and iden I i lied guidelines for implemellting shared parking as fol- lows: . Each parking- space should be usable hy all parkers, i.e.. no restrictions. . The facility will have significant inbolllH[ alld out- bound traffic flow at olle or more periods of' the day. ThereFore, the desi~n of the access and cir- culation syst em must accollllllodal e bi-di rect ional ll1ovemet;t wit houl siglli fiGllll COil flict. Also. the circulation concept should be easy to use and un- derstand in order to minimize confusion and inef'- ficient driving Illanell\'ers. . The hlcility would tend to operate ~-l hours. se\'en da)"s per week. Thus. safe da)" and ni~ht operation \l'ould be a sig-nificant characteristic. . Because of the Illultiple land uses that would be served. in\'()"'ing a variety of' t\'Pes or parkers (e,g.. business. daily \'ersus infrequent. shoppers. visi- tors. recreational. etc.). the facilit\, \"ill be ll10re sensitive to eflecti\'e signing-. Illal:kin~s. and 01 her comlllu n ica tio n s \'ste m s. . Thought needs t() be given to enforcement of parking for on-site \'isits. since the facility \"ill be Illore sensiti\'e to enlToachll1ent (i,e.. less t~vicall)" vacal11 space), . A strateg)" for the use of the facilit~, needs 10 be de- veloped in order to guide parkers to the most op- timum space, The strateg-v would c01lsider: a. Achie\'ing maximum separation of' those parkers \\'ho tend to cOlllpete for space. j,e.. being- present at the same time (e.g.. shoppers and cinema patrons attending- matinees). b. Achieving minimulll walking- distance to those land lIses having captive market relationships. c. Achieving minimum separation of those parkers not competing- for space. . The data collected in the sun'e\' was sufficiently consistent to indicate that a qu~'ll1titative basis f(n" estimating shared parking- demand does exist. Since the shared parking- methodolog-y estimates potential parking requirements for specific mixed- use or multiuse developments. it can be used as evidence for a zoning procedure and as a develop- ment design tool. Use in zoning procedures is sig- nificant because of the parking standards currently used in most urban areas. In many cases. the shared parking analysis will indic;ite lower parking requirements. . 31ArZO [!Jilffi'[i!] [1fl1[i!lIl1 S e pIe m be r H 3 7