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Description: This is a graphic depiction of corporate boundary limits for all incorporated towns, villages, and cities in McLean County, IL. The graphical boundaries were initially developed from plat maps and annexations. Tax assessment data is also used in the graphical placement of boundary lines but is not considered error free. Authoritative corporate limits records can be obtained from the source directly. Also questions regarding boundary limits should be directed to the respective municipal government,
Service Item Id: b47f91806abf464da69785c2d0679142
Copyright Text: Various corporate entities within McLean County, Illinois
Description: This is a polygon feature class that holds polygons that make up the unincorporated town of McLean County. A polygon was drawn around all parcels that make up the unicorporated areas and exported to a new layer.
Description: This data set contains Illinois county boundaries in line and polygon formats. The polygon attribute data include county name and number (FIPS) designations. The line attributes indicate which county lines also form the state boundary. The data were extracted from, and are redundant with, ISGS feature dataset IL_Public_Land_Survey_System. The data set is maintained as a separate entity for ease of query and display. The nominal scale is 1:62,500. As of 2003, the data are typically distributed in geographic coordinates (longitude and latitude), decimal degrees, and the North American Datum (NAD) of 1983, and this is the default spatial reference of the ArcSDE feature dataset in which the data are stored. The data were originally developed, however, in a custom Lambert Conformal Conic projection and were distributed in that coordinate system for several years. The data were digitized in the late 1960s and in 1984-85 from 7.5- and 15-minute USGS topographic quadrangles. Errors in the location of a given feature are dependent on the accuracy of the original maps and on the accuracy of digitizing. Estimates are that features have an average locational error of at least plus/minus 100 feet.
Description: This dataset contains townships from the Illinois Public Land Survey System in line and polygon form. Line attributes identify state, township and range boundaries, principal meridians, and base lines. Polygon attributes identify meridian, township, range. The nominal scale is 1:62,500. As of 2003, the data are typically distributed in geographic coordinates (longitude and latitude), decimal degrees, and the North American Datum (NAD) of 1983, and this is the default spatial reference of the ArcSDE feature dataset in which the data are stored. The data were originally developed, however, in a custom Lambert Conformal Conic projection and were distributed in that coordinate system for several years. The data were digitized in the late 1960s and in 1984-85 from 7.5- and 15-minute USGS topographic quadrangles. Errors in the location of a given feature are dependent on the accuracy of the original maps and on the accuracy of digitizing. Estimates are that features have an average locational error of at least plus/minus 100 feet.
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Description: The data was derived from the 'Federal Aviation Regulations, Part 150 Noise Exposure, Final Report Exhibit III-1 "Future Recommended Noise Exposure Contours"' study commissioned in 1988. The Study was initiated in 1988. FAR Part 150 requires the development of 65,70, and 75 Ldn noise contours. The Bloomington-Normal Part 150 Study Advisory Committee requested an additional contour at the 60 Ldn level. The field data collection portion of the Study was conducted between December 1,1988, and December 10,1988. The largest (noisiest) aircraft used in this Study was a Boeing 737-200 such as AirTran used when they first began providing service to the Airport. Commercial (scheduled air carrier) traffic produces the most noise and thus essentially controls the airport noise environment. Atmospheric conditions impact noise levels. Wind direction, wind speed, temperature, barometric pressure, and ground cover (snow) all affect noise levels at the same position from the runway. Wind direction will also impact the flight patterns and the active runway. Study projections for 2003 suggested 3,600 scheduled air carrier operations per year, or 10 per day. The Study projected only 1,297 of those operations per year, or four per day would be jets. The remainder would be turboprop. The Study did not expect development to the east of the Airport due to lack of sewer service. Federal Aviation Regulations Part 150 (FAR) does not recognize Ldn levels below 65 as having a signiJicant impact upon activities such as sleep and conversation. The only mention of the 60 Ldn noise contour in the BMI Study was that it was included at the request of the Bloomington-Normal Part 150 Study Advisory Committee. The Study mentioned that the noise level at Illinois Route 9 produces a noise contour of 65 Ldn which extends 70 to 120 feet either side of the roadway. The new north-south runway (2-20) was expected to be in operation at the beginning of 1993 according to the Study. In fact, the new runway was dedicated May 3 1, 1996, three and one half years later. The Study assumed that runway 1 1-29 (east-west) would be used 60% of the time until the new terminal was in operation. My observation is that runway 11-29 is still utilized more than half of the time over a time span of a year. The cost of the BMI Part 150 Study was $357,500. Other Illinois airports, including O'Hare and Midway had studies done within a couple of years of the BMI Study. None in the state are more recent than 1995 (Rockford).
Description: <DIV STYLE="text-align:Left;"><DIV><P><SPAN>The published representation of educational facilities (schools, colleges, etc.) managed in the facility site point feature class, combined with service information and organized for consumption in desktop and web applications.</SPAN></P></DIV></DIV>
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Color: [0, 0, 0, 255] Background Color: N/A Outline Color: N/A Vertical Alignment: bottom Horizontal Alignment: left Right to Left: false Angle: 0 XOffset: 0 YOffset: 0 Size: 12 Font Family: Tahoma Font Style: normal Font Weight: normal Font Decoration: none