Lab 9: Arc Collector Part II - Assessment of Water Street and Chippewa Street, Eau Claire, WI for Rollerblading
Arc Collector Part II: Assessment of Water Street and Chippewa Street, Eau Claire, WI for Rollerblading
Introduction
Rollerblading is a great way to get outdoors and get exercise within a city, but badly maintained sidewalks can make rollerblading an hazardous experience. Rollerblading is common within college students and Eau Claire is a college town; therefore, the assessment of two major streets for rollerblading hazards was done to try to quantify the hazards in the college portion of Eau Claire. ArcCollector was used to collect data for this study. The various attributes used to assess the hazards of various sidewalks were the number of rocks/Twigs, the amount of sediment present, and the number of cracks/bumps. When walking the study area, a point was taken when one of these hazards was encountered.
Methodology
The first thing that needed to be done to complete this study was to created a geodatabase within ArcGIS. A file geodatabase was created and named appropriately. The next step was to create domains within this geodatabase. Domains can either be a range or coded. In this study, two range domains were needed. The first being for the rocks/twigs category and the next for cracks/bumps. These could of been kept within one domain, but two were used so the ranges of numbers could vary. A coded domain was used for the amount of sediment attribute. This had three coded values: small (0-10%), medium (10-20%), and large (>20%). After the domains were successfully completed the next step was to create a feature class.
This feature class will contain point features and a projected coordinate system of WGS 1984 Major Auxiliary Sphere was chosen. The next step in creating a feature class is to add the appropriate fields and assign domains. There were four fields that needed to be added for this feature class. The first being Rocks/Twigs, this was a long integer field that had the domain of Rocks/Twigs created earlier. The next field being Sediment, this was a text field that had the domain of Sediment. Third was the Cracks/Bumps field that was a long integer field that was assigned the domain of Cracks/Bumps. The final field was notes, this was a text field that wasn't assigned a domain because it is for any information unique to a specific point during a survey.
After the feature class was created it was added to ArcMap and published to ArcGIS Online using the save as a service feature in ArcMap. Once this feature layer was added onto ArcGIS Online, using the Map tab, a basemap can be chosen and then the feature layer can be added. To finish creating a web map, the save as button can be selected. Once, a web map is created, the document will show up on the ArcCollector app.
The final step of this project was to collect the survey points. ArcCollector can be downloaded from the apple or android app store and one can then log on using their ArcGIS Online credentials. The survey of choice can then be selected and the plus button hit to gather a data point (Figure 1). This survey started on 1st and Chippewa Street, Eau Claire, WI. The surveyor walked west on the sidewalk and collected data points when a hazard was present. 1st until 6th street was walked and assessed for hazards. The next street was Water street. The surveyor started at 6th and Water Street and walked until 1st and Water Street. ArcCollector shows real-time data points on the map, as one is surveying so the past data points can be assessed in the field (Figure 2). Once, all of the data points were collected, the data was processed in ArcMap.
Results
The first feature assessed was the Rocks/Twigs field. This was a number of rocks or twigs that were found on the sidewalk and would contribute to a rollerblading hazard. The map created shows a series of dots that increase in size as the number of rocks or twigs found increases (Figure 3). The first thing noticed on this map was that the amount of rocks and twigs on Water Street was much lower than that of Chippewa Street. This makes sense as Water Street is a main street and is cleaned more properly, than side streets. Houses on side streets, such as Chippewa, are majority rented by college students that may not properly take care of the sidewalk in front of their house.
The next feature to look at was the amount of sediment on the sidewalks. This was separated into three categories: small, medium, and large amounts of sediment. The map created using increasing dot sizes as you go from small to large (Figure 4). The same pattern emerged in this map as the previous one. The amount of sediment present on Chippewa Street was larger than that on Water Street. Another thing to note, was that some of this sediment was snow and some of the dirt was probably due to the recent presence of snow. This data on amount of sediment may be more accurate if taken closer to the summer months.
The final feature assessed was the number of cracks or bumps. A map was created and also used dots of increasing size to represent a large number of cracks or bumps (Figure 5). This map also showed a larger amount of cracks and bumps on Chippewa Street than Water Street. This really stressed the fact that the side streets, such as Chippewa, are not as well maintained as Water Street and are more hazardous for rollerbladers. After collecting data on the number of cracks or bumps on the sidewalks, it was determined that categories of mild, moderate, and severe may have been a better choice for the assessment of cracks and bumps in the sidewalk. Overall, the number of cracks and bumps could still assess the health of a sidewalk.
Conclusion
This study that assessed the sidewalk quality for rollerblading had one major conclusion. Main streets are more maintained than side streets in Eau Claire and would provide the least amount of hazards when rollerblading. The side street of Chippewa Street contains many stop where there are missing pieces of concrete or very large bumps that would be vary hazardous to a rollerblader or even a biker. When getting outdoors in Eau Claire, the main streets are the best option for city rollerblading.
References
Creating and Sharing a Map, Collector for ArcGIS. ArcGIS Online Tutorials.
Introduction
Rollerblading is a great way to get outdoors and get exercise within a city, but badly maintained sidewalks can make rollerblading an hazardous experience. Rollerblading is common within college students and Eau Claire is a college town; therefore, the assessment of two major streets for rollerblading hazards was done to try to quantify the hazards in the college portion of Eau Claire. ArcCollector was used to collect data for this study. The various attributes used to assess the hazards of various sidewalks were the number of rocks/Twigs, the amount of sediment present, and the number of cracks/bumps. When walking the study area, a point was taken when one of these hazards was encountered.
Methodology
The first thing that needed to be done to complete this study was to created a geodatabase within ArcGIS. A file geodatabase was created and named appropriately. The next step was to create domains within this geodatabase. Domains can either be a range or coded. In this study, two range domains were needed. The first being for the rocks/twigs category and the next for cracks/bumps. These could of been kept within one domain, but two were used so the ranges of numbers could vary. A coded domain was used for the amount of sediment attribute. This had three coded values: small (0-10%), medium (10-20%), and large (>20%). After the domains were successfully completed the next step was to create a feature class.
This feature class will contain point features and a projected coordinate system of WGS 1984 Major Auxiliary Sphere was chosen. The next step in creating a feature class is to add the appropriate fields and assign domains. There were four fields that needed to be added for this feature class. The first being Rocks/Twigs, this was a long integer field that had the domain of Rocks/Twigs created earlier. The next field being Sediment, this was a text field that had the domain of Sediment. Third was the Cracks/Bumps field that was a long integer field that was assigned the domain of Cracks/Bumps. The final field was notes, this was a text field that wasn't assigned a domain because it is for any information unique to a specific point during a survey.
After the feature class was created it was added to ArcMap and published to ArcGIS Online using the save as a service feature in ArcMap. Once this feature layer was added onto ArcGIS Online, using the Map tab, a basemap can be chosen and then the feature layer can be added. To finish creating a web map, the save as button can be selected. Once, a web map is created, the document will show up on the ArcCollector app.
The final step of this project was to collect the survey points. ArcCollector can be downloaded from the apple or android app store and one can then log on using their ArcGIS Online credentials. The survey of choice can then be selected and the plus button hit to gather a data point (Figure 1). This survey started on 1st and Chippewa Street, Eau Claire, WI. The surveyor walked west on the sidewalk and collected data points when a hazard was present. 1st until 6th street was walked and assessed for hazards. The next street was Water street. The surveyor started at 6th and Water Street and walked until 1st and Water Street. ArcCollector shows real-time data points on the map, as one is surveying so the past data points can be assessed in the field (Figure 2). Once, all of the data points were collected, the data was processed in ArcMap.
 |
| Figure 1. This is a screenshot of the a data point entry within ArcCollector on an Android device. |
 |
| Figure 2. This is a screenshot of the ArcCollector app after all of the data points were collected. |
Results
The first feature assessed was the Rocks/Twigs field. This was a number of rocks or twigs that were found on the sidewalk and would contribute to a rollerblading hazard. The map created shows a series of dots that increase in size as the number of rocks or twigs found increases (Figure 3). The first thing noticed on this map was that the amount of rocks and twigs on Water Street was much lower than that of Chippewa Street. This makes sense as Water Street is a main street and is cleaned more properly, than side streets. Houses on side streets, such as Chippewa, are majority rented by college students that may not properly take care of the sidewalk in front of their house.
 |
| Figure 3. Map of number of Rocks or Twigs found on sidewalks. |
The next feature to look at was the amount of sediment on the sidewalks. This was separated into three categories: small, medium, and large amounts of sediment. The map created using increasing dot sizes as you go from small to large (Figure 4). The same pattern emerged in this map as the previous one. The amount of sediment present on Chippewa Street was larger than that on Water Street. Another thing to note, was that some of this sediment was snow and some of the dirt was probably due to the recent presence of snow. This data on amount of sediment may be more accurate if taken closer to the summer months.
 |
| Figure 4. Map of amount of sediment found on sidewalks. |
The final feature assessed was the number of cracks or bumps. A map was created and also used dots of increasing size to represent a large number of cracks or bumps (Figure 5). This map also showed a larger amount of cracks and bumps on Chippewa Street than Water Street. This really stressed the fact that the side streets, such as Chippewa, are not as well maintained as Water Street and are more hazardous for rollerbladers. After collecting data on the number of cracks or bumps on the sidewalks, it was determined that categories of mild, moderate, and severe may have been a better choice for the assessment of cracks and bumps in the sidewalk. Overall, the number of cracks and bumps could still assess the health of a sidewalk.
 |
| Figure 5. Map of number of Cracks or Bumps on sidewalks. |
Conclusion
This study that assessed the sidewalk quality for rollerblading had one major conclusion. Main streets are more maintained than side streets in Eau Claire and would provide the least amount of hazards when rollerblading. The side street of Chippewa Street contains many stop where there are missing pieces of concrete or very large bumps that would be vary hazardous to a rollerblader or even a biker. When getting outdoors in Eau Claire, the main streets are the best option for city rollerblading.
References
Creating and Sharing a Map, Collector for ArcGIS. ArcGIS Online Tutorials.
Comments
Post a Comment