This report is the annual continuing study of speeds of vehicles on runl Indiana lIighways. Observations of spot speeds were taken on Interstate, four-lane, and twolane high ... ays throughout the state during the~onths of June, July and August 1972. Analysis of the speeds sho...ed the overall average speed for passenger Cars "'as 65.20 ..iles per hour. The overall aver.ge speed for heavy trucks .... s 57.56 miles per hour. This was 0.33 mph mOTe for passenger cars and 0.79 mph more for trucks than sillilar data given for 1971 at the $3l1e locations (except for station 10 ... hich had been shifted 0.8 111le north...ard). Sillple linear repression analysis sho...s an overall 0.75 .. ph increase of speed for all classification of vehicles and high... ays over the last 11 years. This trend is a bit less than that of a ten year period cnding five or six years ago and appears to result frolll a "leveling-off" of lIlaximulll speeds in recent years. (See Figure A) Interstlte Highways '-' lIiles south of Junction " " LO .ile west 0' Junction " '" LO mile east 0' Junction 0' Post Road ,"S miles north of Junction of SR 16. Four Lane High~ays '-' .,ites south of Junction of SR " L. mile east of Junction of " " LO mile north of South Junction 0' " , LO mile~est 0< Klondike "0 Lane IliShwlYS LS ,.ites east of Junction 0' 1-69 '-' .. ites south 0' Chalmers

The attached Final Report is on the KPP-1 (12) Part I Study titled "Urban Transportation Plannino Process". This report is the final one on a part of this Study concerned with development of travel patterns of an urban area from work trips.The Report is titled "Comparative Travel Patterns from Four Work Trip Data Sources" The research has been conducted and the Report authored by fir. I.'ino-Kwono Law, Graduate Instructor on our staff under the direction of"

Tnis report is tne annual continuing study of tnc speeds of vehicles on rural Indiana nitnways.~b"ervations of spot speeds were taken on interst.te, four-l.ne, and two-lane highways throughout tne state during tne Months of June, July and August. 1971. Analysis of the speeds showed the overall average speed for passenger cars~'as~•• 9 .. iles per hour. The overall .verage speed for trucks was 57.9 ..lIes per hour. This was 0.60 ..ph less for passenger car. and 0.37 .,iles ",Ore for trucks th.n similar data given for 1970 at the sa..e locations.