HomeMy WebLinkAbout1990 06 20 Memo Re: Inter-Local Agreement Contracting Travel Time and Delay Studies
June 20, 1990
ISSUE PAPER
FROM:
CALNO
Steven L. Decker, Seminole countyt7~
Traffic Engineer
TO:
SUBJECT:
Inter-local Agreement
Contracting Travel Time and Delay Studies
ISSUE
The Traffic Circulation Element (9J5) requires the establishment
of the existing Level-Of-Service of all roads within the local
governments jurisdiction. Seminole County has contracted and
completed County Arterial and Collectors, but have not addressed
the State road system. The State road system effects all
government entities within the County thus, making it imperative
to include those roadways in the study. The proposed Inter-local
is intended to address the determination of the Level-Of-Service
on the State system using the Travel Time and Delay study and share
the cost.
BACKGROUND
Typically Level-Of-Service have been calculated using peak hour
traff ic volumes and the Highway Capac i ty formula. This is a
quantitative method to determine the quality of the traffic
circulation of a roadway. The formula incorporates assumptions
based upon average traffic conditions of roadways world-wide.
Understanding that many factors effect the quality of travel upon
any roadway, it is easy to understand that a quantitative
calculation to determine roadway Level-Of-Service is not a totally
accurate methodology.
The Travel Time and Delay study is an in field study that measures
the amount of delay and the travel speed of the study vehicle upon
the road-way. The results, by using the applicable roadway
classification chart compared to the speed/delay, determines the
Level-Of -Service. This is a State acceptable methodology to
determine roadway LOS.
COST
Attached is a list of roadways and the milage of each within the
applicable Government Agency. Our consultant has provided the cost
per roadway and we determined each agency's share. This is the
proposed cost for October 1990. The project should be completed
annually for the next three years than bi-annually henceforth.
REQUEST
It is requested that each agency participate and sign the Inter-
local Agreement.
SLD:rh
(calno.iss)
COUNTY
SR 436 2.2 miles ( 19% of $7029) = $ 1,335.51
US 17-92 1.6 miles ( 38% of $4154 ) = 1,578.52
SR 434 4.4 miles ( 21% of 13,738) 2,884.98
SR 426 4.8 miles ( 83% of 3668) 3,043.61
SR 46 1.8 miles ( 34 % of 3362) = 1,143.08
$ 9,985.70
ALTAMONTE
SR 436 5.1 miles (44% of 7029) = $ 3,092.76
SR 434 4.0 miles ( 18% of 13,738) = 2,472.84
$ 5,565.60
CASSELBERRY
SR 436 4.2 miles ( 37% of 7029) $ 2,600.73
US 17-92 1.9 miles (45% of 4154 ) = 1,869.30
$ 4,470.03
OVIEDO
SR 434 3.5 miles ( 16% of 13,738) = $ 2,198.08
SR 426 1.0 miles ( 17% of 3667) 623.39
$ 2,821.47
LONGWOOD
US 17-92 .7 miles ( 17% of 4154 ) = $ 706.18
SR 434 4.0 miles ( 18% of 4154 ) = 2,472.84
$ 3,179.02
WINTER SPRINGS
SR 434 6.0 miles ( 27% of 13,738) = $ 3,709.26
SANFORD
SR 46 3.5 miles ( 66% of 3362) = $ 2,218.92
,"201'91:' 10: 09
C407 6285773
T. C. G.
I
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Seminole County Travel time and Delay Studies
(PS . 076)
Cost Breakdown for Stat~ Road Study Arterials
(Location~ 18-22)
Location
Length
CsW
$7,029
4,154
13,738
3,667
U6l
531,950
SR436.......... .11.5 miles
US 17-92 . . . . . . . .. 4.2 miles
SR 434. . . . . . . . . . .21. 9 miles
SR 426. . . . . . . . . .. 5.8 miles
SR 46. . . . . . . . . . .. 5.3 miles
Source:
Transportation Consulting Group (~0-11)
RECEIVED
FEB 201990
DEPT. OF PUBLIC WORKS
TRAFFIC ENGINEERING
SEMINOLE COUNTY
IJ
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