The City of Los Angeles Implements Its New Web Presented By: SARAH EL-SHOUBARY By: Madeleine Rackley Web Address: Topic Number: 31 Date: FALL1999

INTROUDUCTION  THE Department of City Planning (DCP) in los angeles is responsible for all of the land use and zoning in the City.  the zoning and land use data was recorded in the past as paper maps that were used to provide information at public counters.  In 1997, ESRI's Professional Services Division began working with DCP to develop a comprehensive and sophisticated zoning information system.

GOALS OF THE PROJECT 1 to automate manual mapping processes 2 reduce redundancy of effort 3 improve the quality, consistency, and reliability of the geographic data 4 provide access to the data from many locations 5 increase productivity and customer service

HOW DOES THE ZMA SYSTEM WORK TTTThis systemprovides City users with access to zoning data using either a Web browser or a PC client executable application. TTTThis system allows a user with a browser to find a property and view the applicable zoning information over the Intranet. TTTThe extended functionality of the system was built on the core functionality to provide more advanced queries and high-quality map output. SSSSome of the queries available are by: 1-property 2-adress 3-nearest intersection 4-map book-page-parcel 5-legal description 6-community map 7-map sheet

MAJOR DIVISION OF THE PROJECT 1 DATA CONVERSION : ESRI and its subcontractors comprised one of three teams that performed the data conversion for DCP. This was originally proposed as a four-year effort to automate the 1,888 hard-copy zoning maps. Now, however, due to good project management, the project is ahead of schedule ESRI and its subcontractors comprised one of three teams that performed the data conversion for DCP. This was originally proposed as a four-year effort to automate the 1,888 hard-copy zoning maps. Now, however, due to good project management, the project is ahead of schedule 2 APPLICATION & DATA BASE DESIGN : The application development strategy was first to build a core tool for deployment to Web browsers and then to extend that tool to provide additional functionality with the PC- executable version. The application development strategy was first to build a core tool for deployment to Web browsers and then to extend that tool to provide additional functionality with the PC- executable version.

MAJOR DIVISION OF THE PROJECT 3 System Architecture and Extensibility ZIMAS is an integration of many technologies including: ZIMAS is an integration of many technologies including: - Microsoft's ActiveX - Internet Information Server (IIS) - Microsoft's ActiveX - Internet Information Server (IIS) - Internet Explorer etc… - Internet Explorer etc… 4 Desktop Mapping and State Management One of the significant challenges with ZIMAS was to provide high- quality mapping over the City's Intranet. With a simple Web-based mapping application, each user must use the same map layout for his or her area of interest. One of the significant challenges with ZIMAS was to provide high- quality mapping over the City's Intranet. With a simple Web-based mapping application, each user must use the same map layout for his or her area of interest.

MAJOR DIVISION OF THE PROJECT 5 Performance good performance is also affected by data access (I/O), data intensity, and number of requests per server. Using, the administrator is able to tune both the number of servers running and the number of connections per service. This allows the administrator to balance request volume with Web server processing capability. The sheer volume of annotation data for the zoning and land base layers challenged the success of ZIMAS. good performance is also affected by data access (I/O), data intensity, and number of requests per server. Using, the administrator is able to tune both the number of servers running and the number of connections per service. This allows the administrator to balance request volume with Web server processing capability. The sheer volume of annotation data for the zoning and land base layers challenged the success of ZIMAS. the administrator is able to use SDE to refine the spatial indexing for annotation features and so tune performance accordingly. the administrator is able to use SDE to refine the spatial indexing for annotation features and so tune performance accordingly.

Conclusion  We anticipate that ZMA will soon be expanded to the Internet. Then anyone will be able to perform basic research on properties from home or office computers, eliminating the need to travel to a City facility, pay for parking, and stand in line to get the same information  ZMA is already being used by hundreds of City employees in many departments. The application has simplified work at the public counters by providing accurate zoning data quickly and reliably.