This readme.txt file was generated on 2016-07-14 by Lisa Johnston (DRUM curator)

GENERAL INFORMATION

1. Title of Dataset: Indiana Interurban Networks

2. File Information:
   A. Filename: Indiana_Interurban.xlsx
   B. Short description: Spreadsheet containing Indiana Interurban Network and Land use data
  

3. Contact Information
   A. Name: Xie, Feng
   B. Institution:University of Minnesota
   C. Address: Minneapolis, MN
   D. Email:

   A. Name: Levinson, David M 
   B. Institution: University of Minnesota
   C. Address: Minneapolis, MN
   D. Email: dlevinson@umn.edu


4. Date of data collection (single date, range, approximate date): 1890 - 1950

5. Geographic location of data collection (where was data collected?): Indiana

6. Date files were created: n/a



METHODOLOGICAL INFORMATION



DATA-SPECIFIC INFORMATION

Parameters and/or variables used in the data set file "Indiana_Interurban.xlx"
(note: the Spreadsheet contains 6 tabs)

Tab name: "stations" 
The first tab contains a list of stations included in our model and their x/y coordinates. 
Column A "Name" = An interurban station is where people can use the interurban service. In our case, name of station is also name of town/city where interurban service is available, given that no place was found to have multiple interurban stations.
Column B "id" = we id-ed interurban stations manually.
Column C "x" =  Coordinate system is an arbitrary planar system
Column D "y" = 

Tab name: "links" 
The second has a list of links with their start and end nodes (Station IDs), their open/close years, and Operator ID.
Column A "id" =
Column B "onode" = in our interurban network, every link is directional. Column B "onode" means "origin node" which is where the link starts; 
Column C "done" =  Column C "dnode" means "destination node" which is where the link ends.
Column D "open" = 
Column E "closed" = 
Column E "operator" = 
	
Tab name: "operators" 
The third documents a list of Operators and their IDs.
Column A unlabeled = Abbreviations listed below from taken from the book: Hilton, G. W. and Due, J. F. (1960), The Electric Interurban Railways in America, Stanford University Press, Stanford.
Column B unlabeled = 

Abbreviations Used in the Column A of tab "operators"
Bluffton Geneva & Celina Trac. = Co.B.G. & C.
Northern Indiana Power Co. = N. I. P.
Fort Wayne & Wabash Valley Trac. Co. = F.W. & W.V.
Marion & Bluffton Trac. Co. = M. & B.
Fort Wayne & Decatur Trac. Co. = F.W. & D.
Indianapolis & Cincinnati Trac. Co. = I. & C.
Interstate Public Service Co. = I. S.
Lebanon - Thorntown Trac. Co. = L. T.
Terre Haute Indianapolis & Eastern Trac. Co. = T.H.I. & E.
Union Trac. Co. of Indiana = U.
Muncie & Portland Trac. Co. = M. & P.T.
Winona Interurban Ry. = W.

Tab name: "county_pop" 
The fourth has a list of counties in Indiana, the x/y coordinates of their centroids, and historical population data from 1897 to 1941. Historical data are only available by decade at the county level, and we calculated years in between by interpolation. 
Column A "countryID" =
Column B "x" =
Column C "y" =  
Column D-AV "pop_YYYY" = Historical population data are only available by decade at the county level, and we calculated years in between by interpolation. Float numbers were a result of this interpolation.

Tab name: "track_pop" 
This tab has a list of tracts, the x/y of their centroids, and historical population data from 1897 to 1941 (tract population is approximated assuming population in a county is evenly distributed within county boundary).
Column A "tractID" =
Column B "x" =
Column C "y" =  
Column D-AV "pop_YYYY" =  tract population is approximated assuming population in a county is evenly distributed within county boundary. Float numbers were a result of this approximation.

Tab name: "description" 
includes descriptive information
Column A = free text
 


SHARING/ACCESS INFORMATION 

1. Licenses/restrictions placed on the data: Attribution-NonCommercial-ShareAlike 3.0 United States, https://creativecommons.org/licenses/by-nc-sa/3.0/us/ 

2. Links to publications that cite or use the data: Xie, Feng and Levinson, David (2011). Evolving Transportation Networks. Springer (ebook ISBN 978-1-4419-9804-0)
http://dx.doi.org/10.1007/978-1-4419-9804-0

3. Recommended citation for the data: Xie, Feng; Levinson, David M. (2016). Indiana Interurban Networks [dataset]. Retrieved from the Data Repository for the University of Minnesota, http://hdl.handle.net/11299/181332.


Credits: Template provided by the University of Minnesota Libraries, http://lib.umn.edu/datamanagement