dyng r$ng rdi vd thdnh cdng trong vi^c qudn ly hg ting dd th) dd Id cdng ngh$ 3D GIS City-ddy Id phan mdm cua hdng Bentley - My nghidn ciru vd dua vdo irng dyng thyc te. Cdng ngh^ 3[r]
(1)OuaN i^ m 7AIV6 00 WI eUNG CdN6 N6UE 30 Gl^ ClTV
Trudc dSy, vi$c qudn ly h^ t4ng thj theo hlnh thirc truyen thong \k d^ra v£io bdn ve so hi§n tr^ng m$t bfing gdy Ichdng it Ichd khdn cho cdc nhd qudn 1;^ b6i hinh dnh dem Iji dom gidn chi trdn mpt mjt phing vdi cdc l(hu chia id, chia thira vd sau Ichi xdy dung xong Ichdng khdi mat can bdng, thieu hdi hoa ctia chieu cao cdc toa nhd, ctia mat dp, cua cdc khodng thodng tong the ciia Icien tnic
Trong nhirng nam qua, de khac phuc tinh trang tren, cdc nha qudn Iy Vi?t Nam thay ddi hinh thirc qudn ly tang dd thi truyen thdng bang hinh thtic mdi la trng dyng h? thong thong tin dia ly GIS (Geographic Informa-tion System) vd dugrc the hien bdng cac phdn mem 2D nhu: IVlapinfo, Ar-cGIS Mac dil hinh thirc quan ly mdi ndy ciing da dem I^i hieu qud cho nhd qudn ly vi?c cung cdp thdng tin theo cdc ldp dir lieu tit cdu triic dia chit,
dja hinh, thiiy vdn, cho Ski cdc cdng vi^c cy the nhu xdc djnh cdc cdng trlnh ng4m hi^n cd, cdc thdng tin ve di^n tich, ranh gidi tga do, thdng tin v^ m^t d0 ddn so Tuy nhidn, hinh thirc qudn ly ndy v5n khdng du cdc tinh ndng ddp img doi vdi toe dp dd th) hda cilng vdi sy bung nd ciia ddn so vd sy phdt trien nhanh chdng ve cdng sd, nhd d, cdc khu cdng nghidp, khu du ljch, hd thdng di?n, nudc gay khd khan vide qudn Iy tdng the tang dd thj nhu: Cdc ddi tugng ciing mpt vj tri cd the chdng len nhau, khd xdc d)nh cdc tda nhd vugrt qud chieu cao cho phdp khu vyc xay dyng ndo dd, chi cung cap dugc thdng tin tten be mjt dd thi cdn cdc ldp doi hrgmg ngam chi hidn thj tupng tnmg chua diing vdi dp sdu thyc
Do dd, nhidu phan mem qudn ly dd thj dupc nghien ciiu dd thay the GIS 2D Mpt nhijtig ph4n men dupc cdc nudc phdt tridn tren the gidi iimg
dyng r$ng rdi vd thdnh cdng vi^c qudn ly hg ting dd th) dd Id cdng ngh$ 3D GIS City-ddy Id phan mdm cua hdng Bentley -My nghidn ciru vd dua vdo irng dyng thyc te
Cdng ngh^ 3D GIS City cd khd ndng cung cap cdc chirc ndng can thidt cho vifc qudn I^ dir Ii$u, quy trinh cdng vi^c ciia ngudi dung vd cdc qud trlnh lien quan den h^ tang thj 3D GIS City cd nhieu Ipi ich cd cong tdc qudn ly vd phdt tridn tli), phdn tich hi^n tr^ng vd dy bdo xu hudmg phdt trien dd thj nhd hien th) day Si vd sinh dpng nhat ve di$n, nudc, viln thdng, nhd ciia, dat dai cd trdn be mat vd cdng trinh ngam dudi Idng dat ciia thj m$t cdch nhanh chdng vd chinh xdc, cy the Id: Nd cimg cap toan bp hidn trfuig thj giiip nhd qudn ly cd cdi nhin todn di$n phdn tich hi^n t r ^ g vd xu hudng phdt tridn thj, nhat Id cdc thi hidn dang thyc hidn chucmg trinh ngam hda todn bp h$
(2)thdng tang; hiln thi tryc quan cdnh quan kidn tnic thi phuc vy cdng tdc qudn ly quy hogch theo chieu cao; cap nhat kip thdi thdng tin quy hogch xay dyng, bd sung vdo ngudn dii Hpu hi^n trgng phyc vu kip thdi cho cdng tac cap phdp thdm dinh quy hogch Thgm chi, phdn mem ndy cung cap nhiing thdng tin chi tidt tgi mdi khu vyc nhu: Chu can hd, ten dudng, be rpng cua mgt dudng, he thdng cdp thodt nudc, dudng ddy dien
He thdng 3D GIS City dupc xay dyng dya tren cdc yeu cdu chung cua GIS 2D nhu: Chuan chung de luu dir lieu; cung cap cdc chdc nang GIS de thu thap, chinh sira, thao tdc va phdn tich du lidu; Ben cgnh dd, cau true he thdng va cac phdn de tgo mpt md hmh 3D GIS City theo he thdng Bently Map cdn cd:
Bdn dd Bentley: Giup cdc nhd qudn ly cd the lap ban dd, lap ke hogch, tao dung vd qudn ly ca sd hg tdng cua the gidi vd tao dilu ki^n cho vide thdnh l^p, tri, chia se vd phan tich cdc thdng tin dia ly 2D/3D, ddng thdi
chinh cdc dng dyng, cy the Id: Phan tich dii lieu khdng gian 2D va 3D; tgo nhung cdnh phim 3D chat lupng cao vd sinh dpng; eho in cdc bdn chat lupng cao; khdi ddng nhanh chdng cdc dy dn thdnh 3D GIS bdng cdch sd dyng City GML cua bdn Bentley dya vdo md hinh dii li$u; luu giu va chinh sua tdt cd cdc logi du li?u khdng gian Dac bipt, ban dd Bentley cd phien bdn de ngudi dung sd dung dd la: Bentley map powerview (hinh dung vd chinh sda cac thdng tin khdng gian dia ly 2D/3D); Bentley map (chinh sda, phdn tich vd qudn ly cdc thdng tin khdng gian dia ly 2D/3D bao gdm viec hodn thdnh bdn dd vd nang cao cdc cdng cy qudn ly (chgy ddc lap hoac tren MicroSta-tion) vd Bentley map En-terprise (chinh sua, phan tich va qudn ly thdng tin khdng gian dia ly 2D/3D cung vdi viec ndng cao qudn ly hinh dnh quet va khung chat ran cho quy trinh cdng vi^c phd 3D)
Bentley Geospatial Server; Cung cap cdc thdng tin vl dii lieu khdng gian, bdn ve, hd sa kinh
doanh va cdc tai lieu khdc thdng qua vipc tiep cgn qudn ly thdng tin lien quan Thdng tin ca sd du lieu cita doanh nghipp, tai sdn, he thong cdc phdng ban vd dd lieu lien quan den dy dn dupc luu giu gdn nhu dudi bat ky mpt dinh dgnh ndo de ngudi dimg cd the su dyng thdng qua giao dien khdng gian Mpt nhung tinh nang uu vidt ciia Bentley Geospatial Server dd la viec qudn ly thdng tin thdng qua each tiep can rieng biet phy thudc vdo vide lap myc luc thdng tin thay cho viec chuyen ddi nd thdnh dinh dang thdng thudng, cho phep thdng tin de truy cap han, xem va chinh sua vdi sy giup da cua ngudi sd dyng tryc tiep cdc cdng cu tu Bentley Geospatial Server
Bentley Descartes: Tich hop day du vdi MicroSta-tion, phan mem hinh dnh Bentley Descartes cho phep ngudi su dyng dinh kem/xem, chinh sua, chuydn va xd ly tat cd cdc du lieu quet mpt iing dyng ddc lap Nd cd the hien thi gan nhu tdt cd cdc tap file quet cdng nghiep thdng dyng ciing nhu cdc dii lieu thdng qua Web Map Service (WMS)
(3)Ngodi vi?c hien thj md hinh s6 dd cao, cdng cy hidn th) ridng bidt ciia Bentley Descarte cd thd hien thj dp doc, dp cao vd khia cjnh sir dyng mdn hinh mdu hiy chinh Phan mdm ndy cung cd the dupc sii dyng de trinh duydt, truy van, dinh kdm vd hien thj cdc dudng qudt Itm giir d khdng gian Oracle
Bentley Descartes bao gdm cdc cdng cy nhu scm, xda, lo^i bd, Idm lom dom vd lu lyt dd hodn thdnh ky thuJt vd hodn thdnh cdng vide IJp bdn dd trdn dix li^u qudt Cdc cdng cy chuydn ngdnh khdc bao gdm thay ddi dia phucmg, di chuydn, cdn, xoay, phdn chieu vd ldm cdng ciing cd san Tat cd cdc hc^t dpng cd the thuc hi?n tren raster 2D hodc 3D vd dupc sir dyng de dng dyng ket cau rdn vide ho trp quy trinh cdng vide ciia thdnh 3D
Bentley Geo Web Pub-lisher: Cung cap lpi ich ciia vide xuat bdn hi^u xudt cao dd ket hpp vdi cdc ngudn dir lidu khdc nhau, tdc gid vd nhd qudn ly dng dyng Web GIS vd ldy dupc phdn ldn thdng tin khdng gian dia ly cua ngudi su dung Tich hpp vector vd
hlnh dnh mdy xuit bdn cdc tjp dir lidu vector vd cdc djnh d^nh khdc, ldm cho dl ddng hom kdt hpp cdc bdn vd, bdn dd, md hlnh, chyp dnh trdn khdng vd hlnh dnh thuydt trinh trinh duydt tiiy chinh Ddng thdi, Bentley Geo Web publisher cdn dupc xdy dyng trdn radt quy trinh xuat bdn tdi uu cho cdc dir lidu khdng gian dja ly, cho phdp nd xuit bdn tir lya chpn ngudn dii lipu phong phu bao gdm DGN, SHP, TAB, DWG, hinh dnh qudt vd thdng tin tao bdi sdn phim cua Bentley GIS cung nhu thdng tin CO sd dir lidu lidn quan bao gdm Oracle Spa-tial
3D GIS City cd the tdng hpp todn didn hidn trang tang dd thi tir thu thap, xur ly, qudn ly, phdn tich va hien thi dir lipu khdng gian vd phi khdng gian trdn ciing mpt mdi trudmg giup cdc nhd qudn \'^ de ddng t^o mpt md hinh 3D GIS City dpng phyc vy cdng tdc qudn ly vd quy hoach thj hidu qud Vipc ling dyng 3D GIS City qudn ly vd phdt tridn thj Vift Nam Id gidi phdp toi im va phii hpp vdi xu the hpi nh|ip cd thd gidi quydt dupc cdc
vin dd cdn tdn tji hipn cdng tdc qudn 1^ h$ ting dd thj
Tuy nhidn, dd irng dyng 3D GIS City vdo qudn 1^ hfl ting dd thj t?i Vipt Nam cdn nhidu khd khdn, vi cdng nghd cdn mdi; chua cd sy ddng nhit hp thong, ndn neu trien khai irng dyng hd thdng 3D GIS City khdng nh&ng khdng thl phdt huy hit cdc iing dyng md cdn gjip phdi nhihig rdo cdn, ban che vl ngudn kinh phi vd ngudn nhdn lyc dl viin hdnh hd thdng 3D GIS City Ngodi ra, ngdn hdng dir hpu nhu thdng tin ve dat dai, quy hofich, cip thodt nudc, dipn dd cimg cip cho hp thdng lim trii phdn mim GIS cdn giai do^n mdi hinh thdnh, ndn chtra diy du Vl v^y, ddi hdi can cd sy quan tdm ciia cdc cap, cdc ngdnh trpng cdng tdc qudn ly dd thj dl t|n dyng tdi da hipu qua ciia 3D GIS City dupc ling dyng tfli cdc thj Vipt
Nam.A
Dlnh Thanh
(Nguon tai lifu Hgi thdo img dung GIS todn quoc nam 2012)