Wednesday, June 30, 2010

L.A. Neighborhoods (On A Budget): by Sara


Potential:

In working with Google Maps, I realized the power that the digital mapmaker has. Using this technology was empowering; when I first realized what I could do with the map, I was overwhelmed with ideas. After watching the few introductory videos that were provided and skimming through some blogs, I was ready to make my map. Or was I? The learning curve was not nearly as steep as I had anticipated. I knew that I had the potential to show users the geographical context for a topic of my choice. I really wanted to come up with a way to show layers of metropolitan expansion and urban encroachment by decade through the San Fernando Valley and the Antelope Valley as well as expanding commuter routes and congestion, but I realized that I would need tools far more powerful than Google Maps to create this kind of a dynamic map. I then settled on the idea of mapping out neighborhoods within L.A. and showing sites within the areas that related to the city’s history and culture with one common theme: all activities would be free. This was possible using Google Maps. I had to compile a list of places and use the map to locate them; then I grouped them according to my own impressions and assumptions about neighborhoods. I wrote descriptions and histories of the places, and defined my own boundaries, ones that I thought coincided with the activities. The most common boundary, I decided, was the freeway, which dissected neighborhoods. Once this was done, I added links to other websites, hopefully reliable, and attached video to several locations where I thought a visual image might be helpful (time-lapse excavation at the La Brea Tar Pits, for example). I tried to include a picture with each point as well. So far, my first encounter with neogeography has been successful and encouraging.

Pitfalls:

Using the Google Maps interface was so simple, yet I reached an impasse, at which, I realized that I was also limited by its simplicity. It is useful to convey simple ideas and to show concepts such as proximity or routes, but the idea of creating layers like in GIS was difficult to imagine. In a way, linking photos and websites to my places was like creating layers, but in a completely different sense. Rather than layers of data, I was compiling layers of other peoples’ perceptions, including my own. What I created was very subjective. What if the information that I gathered was inaccurate? Because I made a map of free things to do in Los Angeles, what if I had misinterpreted my sources and misguided my users? Also, in connecting websites, such as the link to Amoeba Records, was I advertising for the company? All I was trying to do was create a map for inexpensive fun, but in doing so, was I bringing together elements that would never otherwise be linked? And did I have the authority and expertise to do this?

Consequences:

What I learned from this experience was how to create a map that I would consider sharing with my friends and family for personal use. I experimented by posting my URL on Facebook and waiting to see the reactions come in. All of my feedback so far has been positive. People seem to be impressed with the resource and a lot of my friends have said that they would consider using my map; college students love inexpensive fun! But I do not believe that it should serve as more than this. It is only a general concept, even a point of reference, that I hope could encourage other people to think of free fun. I can imagine this kind of information spreading by word of mouth and becoming convoluted and confusing as it is passed around. However, I would undoubtedly be curious if I saw a similar map for a new area that I had never explored. I would like to learn how to improve my map, since it could be a good tool in the current economy.

Saturday, June 26, 2010

Beverly Hills Quadrangle Assignment

1. What is the name of the quadrangle?

It is called the Beverly Hills Quadrangle. This information is located in the upper right corner of the map.


2. What are the names of the adjacent quadrangles?

To the north is (2) the Van Nuys Quad, to the east is (5) the Hollywood Quad, to the south is (7) the Venice Quad and to the west is (4) the Topanga Quad. The northeast is (3) Burbank, to the southeast is (8) Inglewood, to the southwest is (6) an unassigned area, possibly the ocean, and to the northwest is (1) the Canoga Park Quad.


3. When was the quadrangle first created?

All data used to create the map was obtained earlier, but compiled in 1995 to create this particular quadrangle. I found this information in the lower left corner of the map.


4. What datum was used to create your map?

The datum is from the North American Datum of 1927, as well as the North American Datum of 1983. Additional datum was gathered from USGS topography from 1966, planimetry from 1978 and other sources. Hydrographic data is compiled from NOS/NOAA chart from 1964. Coordinates are from the California Coordinate System and the National Geodetic Vertical Data. This information was also from the lower left corner.


5. What is the scale of the map?

The scale is denoted in a dimensionless ratio of 1:24 000. This is found in the center at the bottom of the map.


6. At the above scale, answer the following:

a) 5 centimeters on the map is equivalent to how many meters on the ground?

5 centimeters is 1200 meters.

b) 5 inches on the map is equivalent to how many miles on the ground?

5 inches is 1.89 miles.

c) one mile on the ground is equivalent to how many inches on the map?

1 mile is 2.64 inches.

d) three kilometers on the ground is equivalent to how many centimeters on the map?

3 kilometers is 12.5 centimeters.


7. What is the contour interval on your map?

The contour interval of the map is 20 feet. The supplementary contour interval is 10 feet. This is found below the scale and graphic.


8. What are the approximate geographic coordinates in both degrees/minutes/seconds and decimal degrees of:

a) the Public Affairs Building?

DMS: 34º04'26" and -118º26'21"

DD: 34.07398º and -118.43923º

b) the tip of Santa Monica pier?

DMS: 34º0'26" and -118º30'3"

DD: 34.00732º and -118.50073º

c) the Upper Franklin Canyon Reservoir?

DMS: 34º7'18" and 118º25'33"

DD: 34.12175º and -118.40907º


9. What is the approximate elevation in both feet and meters of:

a) Greystone Mansion (in Greystone Park)?

560 feet=170.688 meters.

b) Woodlawn Cemetery?

140 feet=42.672 meters.

c) Crestwood Hills Park?

630 feet=192.024 meters.


10. What is the UTM zone of the map?

The UTM is the Universal Transverse Mercator Grid, which divides the earth into 60 north-south zones, 6 degrees wide. The Beverly Hills Quad falls into Zone 11, which covers 120 degrees to 114 degrees; the map covers a range around 118 degrees. I found a UTM Zone Map on the USGS website.


11. What are the UTM coordinates for the lower left corner of your map?

The UTM coordinates in the lower left are 3763000 and 362000.


12. How many square meters are contained within each cell (square) of the UTM gridlines?

Each UTM cell contains 1,000,000 square meters.


13. Obtain elevation measurements, from west to east along the UTM northing 3771000, where the eastings of the UTM grid intersect the northing. Create an elevation profile using these measurements in Excel. Figure out how to label the elevation values to the two measurements on campus. Insert your elevation profile as a graphic in your blog.



Above: I included all elevation estimates and indicated the two elevations on campus with yellow arrows and a label.


14. What is the magnetic declination of the map?

The declination is the difference between true north and magnetic north, so it is positive 14 degrees to the East. This is indicated by a chart at the bottom of the map.


15. In which direction does water flow in the intermittent stream between the 405 freeway and Stone Canyon Reservoir?

This stream flows from North to South.


16. Crop out (i.e., cut and paste) UCLA from the map and include it as a graphic on your blog.


Above: I included part of the Ronald Reagan Medical Center, because I wasn't sure if this would also be considered part of the UCLA campus.

Wednesday, June 23, 2010

Three Interesting Maps

http://discovermagazine.com/2006/dec/global-happiness-study

Above: A map obtained from Discover Magazine's website shows global levels of self-reported happiness. The map, titled "Shiny, Happy People" ranks overall individual satisfaction with life for 178 countries. Factors such as life expectancy, leisure time compared to work time, access to social services, health, wealth and education were assessed to produce an image reflecting global happiness. The "happiest" place on earth was Denmark, followed by Switzerland and Austria. Industrial leaders such as the U.S. and China were surprisingly low-ranking, while the nations of Congo and Zimbabwe were at the bottom of the list. Seeing levels of happiness represented in colors, rather than reading a list, is a more powerful tool for comparison and presentation.

http://www.thetransportpolitic.com/2010/03/01/how-feasible-is-antonio-villaraigosas-3010-gambit-for-los-angeles-transit/

Above
: This hypothetical map represents Los Angeles twenty years in the future, if the city adheres to Mayor Villaraigosa's 30/10 Plan, which would increase zoning density and accelerate the speed of light-rail and subway construction in the city. Created by Transport Politic, a transportation planning website, this map shows all rail line extensions in the same image, with a timeline of construction. While many Angelenos have heard of a few of these projects, seeing them all together is more significant, because the connections between places that currently seem unrelated becomes apparent. The promise of this visual is also motivating; people who might not understand the need for the extension of the Gold Line, may look at this and see how it could connect residents of the San Gabriel Valley to the rest of the county.


http://www.handmaps.org/curated4.html

Above
: Hand-drawn maps also capture personal impressions of a city better than other digitally produced or drafted maps. This map, created by a native of Amsterdam, was part of a project launched by the Amsterdam Center for Architecture to capture the essence of different locals' perception of where they live. Each map is unique, and reflects that persons' favorite shops, streets, parks and sights. This map includes homes of friends, bike routes and other personal routes that various participants take to reach the same endpoint. I found this map in an archive for the Hand Drawn Map Association.