2008-11-05 P & R Packet - Laserfiche WebLink

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CPTED Strat€Qies- Pri nce Wi II iam Countv. Virginia II. CPTED STRA TEGI ES CPTED design strategies have e/olvoo ova- time. While many cctua tochniqueshave beEn in use for hundroosof years, it has only beEn in the I ast feN docades that urban pi anni ng expa-ts SJch as J3ne J3c0bs and Osca" NeNman haveexploroo thereationship betwOO1 the built environment and crimina behav i or . Ecch of the fol lowing CPTED strategiesoffa-s gui de i nes that propa-ty owna-s, desi gn profes3iona S, de/eopa-s or remodea-s may apply to roouce the fear and incidence of crime and improvethequaity of life. Tha-e ere four ova-l appi ng CPTED strategi es. They indudeNatura Survellance, Natural Acce::s Control, Ta-ritorial Renforcement and M ai ntenance. NATURAL SURVEILLANCE The placement of physica features, cctivities and prople in a way that maximizes visibil ity is one concept di rECtoo toward keepi ng intruda-seasily obsa-vcble, and tha-eforeless like y to commi t cri mi nal acts. Features that maximizethevisibilityof prople, parking areas and building entrances are unobstructoo doors and windows, paJestrian-friendly si deNaI ks and strrets, front porches and appropriate ni ghtti me I ighti ng. NATURAL ACCESS CONTROL Natural Acce::s Control is anotha- desi gn concept diroctoo primarily at decreasing crime opportuni ty by denyi ng access to cri me targets and creating a pa-ception of risk for offenda-s. PaJpl e are physi ca I Y gu i dOO through a spa:;e by the strategic dfSign of strrets, sideNa ks, bui I di ng entrances, I andscapi ng and neghborhood gateNays. Design eements ere va-y useful tool s to d Effl Y indicate publ ic routes and discourage access to private ereas. TERRITORIAL REINFORCEMENT Physical design can a19:> create or extend a spha-e of i nfl uence. Usa-s are encouragOO to de/eop a sense of ta-ritorial control. while potentia offfflda-s, pa-ceiving this control , are di scouragOO. This concept i nd udes features that dEti ne propa-ty lines and di sti ngui sh between pri vate and publ i c spaces usi ng I andscape pi anti ngs, pavement desi gns, gateNay treatments, appropriate signage and "open" fences. We normaly rECOmmend a six foot high straight bar tubular stoo fence. This type of fencing will dEta- graffiti, would be attrcctive and not obstruct common obsa-vation. If tha-e wa-ea largecrea that would befencaJ, chain link fenci ng coul d be usOO but it is less attractive and the mai ntenance cost for repai rs and removal of graffiti would be higha-. If chain link isusOO it should bea minima of 8 fret high. The fence fabric shoul d be a 9 gauge or heavia- with the mesh opening not I erga- than 2 inches wi th twi stOO sa vage at the top and bottom. The fence posts shoul d be spacaJ no fertha- than 10 fret apart. The depth of the post hol es shoul d be a mi ni mum of 2 feet (pi us 3 inches deep for each foot ova- 4 fret the fence is). The posts should be sa in concrEte. The spa:;e betwOO1 the ground and the fence fcbric should not exceed 2 inches and the fence should beSEOJroo at 2 foot i nta-val s. A 3-strand bcrbOO wi re fence top is opti onal. We norma I y woul d n' t rECOmmend a wooden fence due to the high cost of repairs and graffiti ra-noval. Signageshould be pi acaJ at the ffltrance and a ong the fence line. The signs should state no loita-ing or trespassing and that all violators will be proSEOJtOO and by whom. All signage and fend ng shoul d be we I mai ntai nOO and repai roo promptl y. MAINTENANCE Lastl y, care and mai ntenance enabl e conti nuoo use of a space for its i ntendoo purpose. Deta-ioration and bl ight indicate less conca-n and control by the i ntendoo usa-s of a si te and i ndi Gate a greata- tol a-ance of di 9:>rda-. A-opa- mai ntfflance pre/ents rooucOO vi si bi I i ty due to pi ant ova-growth and obstructoo, or i nopa-ative, I ighti ng, whil e servi ng as an additional expres3ion of ta-ritoriality and owna-shi p. 3