International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, Vol XXXV, Part B5. Istanbul 2004
minimum radius of horizontal curve, the minimum length of
horizontal curve, the stop sight distance, the transition curve
and the maximum eccentric grade.
Table 1. Geometric structure standards
2.2 Alternative rote selection
Presently, the road network system is insufficient that
construction of circulation road network that connects the urban
and the suburban east to west direction in main road. The road
maintenance in the general plan selected outside circulation
road is satisfied with the function of the main network and in
point of view the road selection is planned the efficiency of
route that is maximized. In addition, it is connected to the urban
and the significant suburban that can be disperse d the function
of the city.
It must be able to activate traffic operation to become the
central traffic of the downtown.
There are accommodated to the land utilization condition and
the development plan that distributed the traffic volume of the
main route of perspective traffic that is efficiently connected to
the main route. It considered the harmony of the development
plan and the smooth traffic on the intersection that can be
possible to establish the route selection plan. (Figure 1)
ROUTE OF SELECTION A
Structure and Facility standards of the | e tM
road regulations 99.8 | : 1
Main > Approach? +0 Fax SE 40 | ÉLIESNAIME ROUTE À
80 50 40 [ned |
Minimum radius of sy 80 Lo | DETAIL ROUTE |
horizontal curve(m) =
Minimum = Under 509 = Boom 250/0 usum E ee a
length ofp P er Rs m err [7] sconoia EUN Lost | Tp Bemomenr
horizontal Over 5" go 60 50 Lun
curve(m) Pen [| NO +
Maximum Fat 4 7 7 em ee
incline(%) Hil 7 10 11 = Saal nr
Minimum Convex len 10 5 H vb
curve
change rate of ra AE A ET TE
Incline(m/%) (ve PO 12 7 EE SE STIR
Minimum length of Lu s Figure 1. Alternative Route Selection Plan
incline(m)
Stop sight distance(m) 140 65 45 3. DIMENSION SIMULATION BY THE EXISTING
Minimum length of o 50 35 ROUTE
transition curve(m)
Transition curve 3.1 Main works
ellipsis curve radius/1,300 220 140
m) Figure 2 is the basis route map(1:1,000) which treats in three
[Transition CUrVER /3<A<R IRA<A<R R/3<A<R cases according to the route location design standards.
parameter T a Comparison plan 1 is through the tunnel in the existing road to
Maximum eccentric, 8 3 connect I.C.. Plan 2 is passed by the tunnel in the existing road
incline (96) to connect the midway, and plan 3 is through the existing road
and the river to pass the midway.
In this study, the beginning part of the approach and the ending
part of the road are connected to outside circulation road of the
function that takes charge of the downtown of the main road
that considered the beginning and ending part of the relevant
road of identity in the future.
It applied carriage way 3.5m, right side shoulder 2.0m and
dividing strip 2.0m. In this study route of the beginning and
ending part applied to consider the driving safety because it is
consisted about 1km pole bridge which was used to emergency
parking strip.
. LE ue
Figure 2. Final Route
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