Mapping & GIS at the University of Kentucky

A collection of projects that were developed for class labs or were part of a collaborative assignment.

Town Branch Trail and Density of Healthy Canopy

Which property has the healthiest canopy?

Which property has the healthiest canopy?

Town Branch Trail is a developing shared-use trail connecting downtown Lexington with the city’s outer countryside. The exercise shows the completed and funded phases for the trail, and assesses the extent and health of trees along the trail.

Using National Agriculture Imagery Program (NAIP)  2012 imagery an NDVI (Normalized Difference Vegetation Index) was created and then shown as a ratio per parcel area. After viewing the initial results, a student said, “This is a realtor’s map!” and then quickly visited the PVA website to compare property values to its ‘green index.’

Mapping Kentucky’s Wildland Fires with Satellite Imagery

KentuckyWildfires_2012-2014Kentucky has damaging wildland fires, while also using prescribed burns to manage habitat. An unfortunate statistic tells us that most wildland fires in Kentucky are from arson.

This student lab uses MODIS Active Fire Detection products and Landsat 8 near-infrared bands to locate and analyze the largest fires between April 2012 and October 2014. I hope to get point locations of smaller fires from Kentucky Division of Forestry to compare with satellite-based observations.

 

Students Like Field Trips

Arboretum Woods Poster

Arboretum Woods Poster

What can students do with a smartphone, ArcMap, and a linux server? More than just have fun outside!

15 student teams from two GIS courses at the University of Kentucky mapped, measured, and photographed 603 trees in the Arboretum Woods. Each team (which adopted colorful team names) was given (approximately) an acre zone. They used common mobile devices and low-cost apps to GPS and photograph the most significant trees. 

Each team made a poster and presented them during a 2014 International GIS Day event in the Thomas Poe Cooper building on UK’s campus. It was widely attended and praised for the strength of student teams’ achievement. 

UK_Arboretum_WebMap_LinkSince students photographed each tree, we made an interactive map that shows these photos and can be used for geolocation while in the woods. Using Leaflet, GeoJSON, and a Linux server, student SWEB accounts host data that feeds this interactive map: Look at trees now!

A Neighborhood’s ‘Green’ Index

NeighborhoodGreenIndex_MLKNAA map showing ratio of property parcels covered in healthy canopy in the Martin Luther King Neighborhood Association in Lexington, Kentucky.

Using National Agriculture Imagery Program (NAIP) 2012 aerial imagery, a Normalized Difference Vegetation Index (NDVI) was created. Values greater or equal to 0.3 were assumed healthy canopy and (mostly) verified by visual inspection from imagery and summer field observations.

Modeling University of Kentucky’s Campus

Campus pedestrian network

Campus pedestrian network

We’ve been visualizing campus paths with new GIS data provided by UK’s Facilities Information Services. Students have GPS mapped cut-through paths (they lovingly call cow paths) and other students have placed SketchUp models for campus town buildings. This is a preview of some of the data, so stay tuned for a featured analysis.

Outstanding Geography Teacher Award

Outstanding Geography Teacher Award, 2014

Outstanding Geography Teacher Award, 2014

Boyd Shearer was awarded the Outstanding Geography Teacher Award for his GIS courses at the University of Kentucky Department of Geography. The award was presented by the Geography Majors during the department’s annual Semple Day awards presentation on April 25, 2014. He’d just like to say, awesome! and he’ll keep trying his best to make mappers.

GEO 309 analysis in Herald-Leader

Article by Jim Warren, Herald-Leader, May 4

Article by Jim Warren, Herald-Leader, May 4

If you ride a bike around Lexington, there are some places where pedaling with extra caution might be wise, a new study suggests.

“Mainly, they’re places where bicycle facilities change, such as where a bike lane abruptly ends. They seem to be the trouble spots,” said Boyd Shearer, a University of Kentucky geographer who led the study of bike-vehicle collisions in Lexington.

GEO 309, Fall 2013 Collision Analysis

GEO 309, Fall 2013 Collision Analysis

Shearer and some of his students recently studied 396 collisions between bikes and other vehicles that occurred on Lexington streets and roads from October 2008 through October 2013. The five-year list included 293 wrecks that caused injuries and three that resulted in fatalities.

After collecting wreck data from police reports, the researchers analyzed the results using a computerized mapping system called GIS that can reveal underlying relationships, patterns and trends.

“I thought it would be an interesting project to do, and that it might help the city,” Shearer said.

A bicyclist himself, Shearer has worked with Lexington planners on other bike-related projects.

He said the new study shows the area around UK had the greatest concentration of bike-versus-car wrecks. That’s not surprising, he said, given the large number of students who ride on campus.

Perhaps more surprising was that 25 percent of the riders involved in collisions during the five-year period weren’t wearing helmets. Another surprise: 21 percent of the accidents were hit-and-runs.

Most notable overall, he said, was that riders often got into trouble in places where bike lanes ended abruptly.

“The bike rider is rolling along in a lane by himself, and that lane suddenly ends,” Shearer said. “You never win against a car if you’re on a bike.”

One such spot, according to Shearer, is near where Winchester Road, East Third Street and Midland Avenue come together. A bike lane along Winchester Road ends at Walton Avenue, and an extra traffic lane for cars opens up between Walton and Midland, he noted.

“Bikers kind of get squeezed,” Shearer said.

He and his students also identified “critical segments” of four streets — mostly near UK — with high numbers of bike-car crashes during 2008-13.

They were: South Limestone north of Virginia Avenue, six wrecks; Euclid Avenue east of Woodland Avenue, five; Winchester Road near East Third Street, four; Rose Street from Euclid to Columbia avenues, four; and Rose from Columbia to Huguelet Drive, three.

Ultimately, Shearer said, he hopes to see Lexington’s bike trails linked together, which would allow riders to bike long distances sheltered from vehicular traffic.

“The Town Branch Trail isn’t connected yet,” he said. “But if it reaches downtown and the Legacy Trail is linked with it, riders could use them in lieu of streets to get in and out of downtown, not just for recreation but for real bike commuting.”

Analysis of all bicycle collisions up to May 5, 2014 with focus on fatalities and injuries.

Analysis of all bicycle collisions up to May 5, 2014 with focus on fatalities and injuries.

Scott Thompson, Lexington’s bike and pedestrian coordinator, said planners were looking at ways to “separate bicyclists from traffic,” whether that’s through more bike lanes or putting small barriers between bike and traffic lanes.

Jim Warren: (859) 231-3255.

Read more here: http://www.kentucky.com/2014/05/04/3227487/analysis-of-bicycle-accidents.html#storylink=cpy

Lexington Walkability Analysis

How close do you live to a pedestrian path?

How close do you live to a pedestrian path?

A Pedshed is used to show how many people are connected by pedestrian paths and sidewalks with either a five-minute or fifteen-minute walk. Only roads with sidewalks are included in the analysis. It is assumed that people can walk faster on pedestrian paths (3.4 mph) than roads with sidewalks (2.8 mph).

Paved paths and sidewalks were attributed and digitized from 2010 aerial photography by students in University of Kentucky Department of Geography’s GEO 409 course, Spring 2014.

This analysis has a focus on existing access and potential future access (of various completed designs)of Lexington’s two longest shared-use trails, the Legacy and Town Branch Trails.

How more connected would Lexington be if the Legacy Trail and Town Branch Trail were completed?

How more connected would Lexington be if the Legacy Trail and Town Branch Trail were completed?

Analysis Results

Five-Minute Walk From All Existing Pedestrian Paths
Approximately 149,000 Fayette County residents (50%) live within a five-minute walk (on a sidewalk) of an existing paved pedestrian path, such as shared-use trail, park walking trail, and school walking path.

Fifteen-Minute Walk From Existing Town Branch & Legacy Trails
Approximately 11,500 Fayette County residents (approximately 3.8%) live within a fifteen-minute walk (on a sidewalk) of existing Town Branch Trail and Legacy Trail facilities. View a dynamic map of this scenario here.

Fifteen-Minute Walk From Completed Town Branch Trail Phase III Without Bridge Across Town Branch
Approximately 12,800 Fayette County residents (4.3%) would live within a fifteen-minute walk (on a sidewalk) of Phase III of Town Branch Trail and Legacy Trail facilities. This option does not include a bridge across Town Branch.

Fifteen-Minute Walk From Potential Future Town Branch & Legacy Trails (with bridge across Town Branch)
Approximately 38,900 Fayette County residents (12.5%) would live within a fifteen-minute walk (on a sidewalk) of finished Town Branch Trail and Legacy Trail facilities.  View a dynamic map of this scenario here.

Pedestrian V. Car Collision Analysis

Maps and Analysis

Maps and Analysis

Point locations for collisions were downloaded from the Kentucky Collision Analysis for the Public (http://crashinformationky.org/) hosted by the Kentucky State Police. Analysis was performed for Kentucky’s Fayette and Jefferson Counties for data period January 5, 2003 – February 23, 2014 as part of University of Kentucky Department of Geography course GEO 409, Spring 2014.

Combined Maps. Click individual county for map.

Combined Maps. Click individual county for map.

Louisville Statistics

  • AMONG ALL COLLISIONS
    4,592 pedestrians v. car collisions occurred with 173 pedestrian fatalities (3.8% of total) and 4223 pedestrian injuries (92% of total).
  • AMONG ALL COLLISIONS WITH PEDESTRIANS USING ALCOHOL OR DRUGS
    257 pedestrians v. car collisions occurred with 26 pedestrian fatalities (10%) and 227 pedestrian injuries (88% of total).
  • Rate: 6.1 collisions per 1,000 current residents
  • Download Map

Lexington Statistics

  • AMONG ALL COLLISIONS
    1,689 pedestrians v. car collisions occurred with 47 pedestrian fatalities (2.9% of total) and 1580 pedestrian injuries (94% of total).
  • AMONG ALL COLLISIONS WITH PEDESTRIANS USING ALCOHOL OR DRUGS
    130 pedestrians v. car collisions occurred with 9 pedestrian fatalities (6.9%) and 118 pedestrian injuries (91%).
  • Rate: 5.5 collisions per 1,000 current residents
  • Download Map

Analysis and maps by Boyd Shearer.

Scenic Landscape Index

Fayette County, Kentucky

Fayette County, Kentucky

Summary
This index favors more natural settings such as rural areas, forests, stream valleys, larger public parks, and areas of high relief. National Register of Historic Properties are included and while most properties were small and located in the urban core, larger properties with tree canopy scored a relatively high value in the index; Ashland and the Lexington Cemetery are examples. Locations in southern Fayette County scored the highest values because of their proximity to the forested cliffs of the Kentucky River Palisades. Neighboring river tributaries, such as Boone Creek and Elk Lick, extend high scenic values northward.

Link to full version of map

Link to full version of map

The area with highest contiguous value is Raven Run Park, primarily because it is publicly accessible, though unfortunately not during the time one might watch a sunrise or sunset. Notable scenic corridors are found along Town Branch, and the North and South Forks of Elkhorn Creek. Because the data used to calculate this index is from 2001 and 1998, some areas that score a high value, e.g. Hamburg area, have since been altered and would score lower values as the density of the built environment increased.

Methodology
Scenic conditions were converted to raster datasets and assessed an integer value based on a location’s proximity to tree canopy, water, historic areas, parks, scenic roads, and the probability of seeing a sunrise or sunset at that location. Those conditions are shown in the Fayette County maps found at the bottom of this page. A location is defined as a 5-foot resolution raster cell. Using Map Algebra, all raster datasets were overlaid to find which locations had the greatest number of scenic conditions. The resulting map provides a relative scenic landscape index. Locations with higher values in the index have more scenic conditions. For example, areas with the highest values offer the best chance to see a sunrise or sunset in a natural setting of forested parks, historic areas, or rural places with ponds or lakes. Areas with the lowest values are primarily dense urban environments without tree canopy cover, parks, historic areas, or ponds.

Layers in Index
Views of Sunsets and Sunrises is an index of areas to view sunsets and sunrises on the solstices, assuming one has a clear view of the sun at 8 degrees above the horizon on these two days. Areas that had the most likely view of a sunset or sunrise were awarded more value than areas with a less likely view.

Proximity to Tree Canopy and Water is an index of areas that are under tree canopy or on a waterbody (greater than a 1/4 acre), or within 200 feet of either. Any of these conditions awarded equal value in the index. Tree canopy derived from 1998 aerial photography.

Parks, National Register of Historic Properties, and Scenic Roads is an index of areas that were state parks or passive natural setting parks were awarded higher value in the index. Community parks, publicly accessible national register properties, and areas within 500 feet of county designated scenic roads were awarded lower, but equal, value in the index.

Densely Built Urban Environment is an index of areas with increasing density of built environment were awarded lower values in the index. Derived from the 2001 National Land Cover Database.

The Daily Aesthetic Oral Histories

Online Oral Histories

Online Oral Histories

Between 1996-1998, I completed about 30 hours of oral histories about once-segregated black parks in Kentucky. About six hours are available online at the University of Kentucky Louie B Nunn Center for Oral History. They’re missing my interview with John Will “Scoop” Brown, a Lexington park programmer and raconteur of zoot suits in Douglass Park. More to be available to be sure.

Here’s the oral history index: The Daily Aesthetic: an oral history of a southern city’s black park system, 1916-1956

“This project focuses on African American culture during the time of segregated park systems in Lexington, Kentucky. These interviews, originally conducted by Boyd Shearer, Jr. for a multimedia presentation, contain descriptions of African American park activities, particularly in Douglass Park. Activities ranged from doll shows, to carnivals, to sports programs. This community also celebrated the visual arts, music, and holidays such as the 4th of July and Easter. The focus of this collection is not discrimination experienced by African Americans at this time, but rather how the park provided a place for them to come together and cultivate a sense of identity and community.”

For an audio documentary using some of these interviews, visit: http://www.outragegis.com/trails/2001/08/08/at-leisures-edge/. The documentary can be downloaded or viewed on SoundCloud. A complete audio script is available.

A paper from this research was produced:

index: http://www.uky.edu/Projects/TDA/archive/TableofContentsandAbstract.pdf
main body: http://www.uky.edu/Projects/TDA/archive/TDA.pdf

Bicycle vs. Car Crash Analysis

Lexington, Kentucky. October 15, 2008 – October 14, 2013.

Lab_3_previewAn analysis of bicycle accidents reported by Kentucky law enforcement agencies over 5 years in Fayette County.

Within Fayette County, 396 bicycle and motor vehicle collisions were reported with 293 injuries and 3 fatalities. The average age of the cyclist was 29 years, 76% were male, and only 25% were wearing a helmet. 21% of the collisions were hit-and-run. The greatest rate, or density, of crashes centers on UK’s campus. The next highest density was downtown, followed by small increases in crashes near Harrodsburg and Waller Ave, Winchester Rd, and on Loudon Ave. Critical street segments in order of greatest number of crashes are: Limestone north of Virginia Ave, Euclid Ave east of Woodland Ave, Rose St between Euclid and Huguelet Dr, and Winchester Road near intersection with East Third St.

Lab_3.Preview_Build

Of all workers (16 years and older) living in the Urban Service Area, only 0.94% say the actively bike commute to work. Within 0.5 miles of a bike lane or sharrow, the share of workers saying they bike commute rises to 1.7%. Also, 89% of bike commuters live within a half mile of a bike lane or sharrow. It is estimated that 25% of all reported accidents have happened on streets with a sharrow or bike lane.

Maps and analysis by Boyd Shearer for GEO 309, NRE 355, and LA 855, October 20, 2013. University of Kentucky. Data acquired from the Kentucky State Police’s Kentucky Collision Analysis for the Public database (http://crashinformationky.org/) and the 2007-2011 American Community Survey 5-Year Estimates for Block Groups (http://www.census.gov/geo/maps-data/data/tiger-data.html).

 

 

UK Campus Native Tree Tour

The University of Kentucky’s Native Tree Trail

The University of Kentucky Native Tree Trail

The great document was made by Forestry students in UK’s College of Agriculture in 2007 and we just found it! This 2.2-mile tour locates 45 native tree species on UK’s campus and includes pictures. From the description, the document appears to be a class project for FOR 599: Geographic Information Systems in Natural Resources. Now this is a great example of using classwork & technology to keep us green and appreciate our diverse flora.

By: Lee Moser and Matt Strong
Course Instructor: Dr. Songlin Fei

This project is supported by the UK Service-Learning Grant Program, Department of Forestry, and College of Agriculture.

Download and for other local tours, visit the Department of Forestry website and click on the left-hand link, “Links and Opportunities.”

Rephotographing Lexington’s Streetscapes

Rephotographing Lexington’s Streetscapes. Click to view Google Map.

A collaborative final project for GEO 172, Introduction to Human Geography, Fall 2012, BCTCS

The class was tasked with rephotographing the streetscapes of downtown Lexington captured by Asa Coleman Chin in 1920-1921. Sanborn maps of the areas Chin photographed are provided as a reference.

Students then researched Lexington newspapers for information about city life during the period 1907-1921. Historic themes of urban improvement, segregation, and riots emerge. Students’ photographs & research show monumental change in areas of civic life, but often little change in many areas of the city’s built environment.

Sources: Kentuckiana Digital Library & Lexington Public Library

Map Discovery Night!

This past Thursday evening Boyd ‘mapped-out!’ Lexington’s Living Arts and Science Center’s January Discovery Night. This two-hour monthly event brings in families to learn about topics in science and art and often has a collaborative element.

Boyd focused on making maps of course, but he also discussed some basic ideas of what maps do (e.g., they show where stuff is) and possibilities they give us (e.g., understanding why stuff is where it is). The kids enjoyed seeing early Kentucky maps from 1733 & 1811 and a map of the modern world illuminated at night. They were a wonderful bunch and had bright responses to geography questions. As a bonus, he gave them a bird’s eye view of the Red River Gorge with two great destinations there to visit.

We would like to thank the Center for this opportunity to see the wonder and happiness in children’s eyes as they explored maps! Visit the Center’s site to see more Discovery Night events.

0

Your Cart