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This is a line feature designating sidewalks alongside roads and walkways into residential yards.<\/SPAN><\/P>

Update features in an existing planimetric dataset, and collect some new additional feature classes, from imagery acquired in the spring of 2020, with a horizontal positional accuracy that shall not exceed 0.38-meters NSSDA 95% confidence (0.22-meters Root Mean Squared (RMSE) Error XY (0.15-meter RMSE X or Y), suitable for 40-scale Planimetrics.<\/SPAN><\/P>

Imagery Bands: 4-band (true color & near infrared) <\/SPAN><\/P>

Acceptable Window: Spring 2020, generally thought to be from February 1, 2020 and continue through April 30, 2020. <\/SPAN><\/P>

Acquisition Conditions: Leaf off, snow free, free from clouds, smoke, haze, light streaks, flooding (streams/rivers in banks), and excessive soil moisture. <\/SPAN><\/P>

Sun angle: Greater than 35 degrees over entire project. Minimal shadows, generally between 10am and 2pm. <\/SPAN><\/P>

Resolution: 7.5 cm Ground Sample Distance (pixel resolution)<\/SPAN><\/P>

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