Corridor Vc Motorway Scenario
Corridor Vc development is one of the highlighted potential projects in BiH since it was
defined as one of the Trans European Corridors. Several studies have been conducted in
the last few years, and the affordability of motorway development from Samac to Ploce
has come to be one of the issues in the road sector in BiH.
As a master plan study for entire BiH, it is considered to be one of the assignments to
make an analysis on the Corridor Vc motorway development. The approach is to use the
traffic model, add new motorway links in the road network, and test it with future traffic
assignments.
The tested motorway scenario is to develop a hypothetical four-lane divided motorway
with free flow speed of 100 km/hr for the designated corridor as an additional facility to
the existing highway. The designated corridor was Corridor Vc (E-73) from Samac
(Northern Border to Croatia) to Metkovic (Southern Border to Croatia). Since the model
can test any additional motorway scenario, an additional hypothetical branch motorway
link of Zepce-Tuzla-Orasje was also tested.
The result of the assignment is shown in Figure 2.2.15. The influence of the motorway is
so strong that it would divert most of the traffic from neighboring corridors. It could
almost solve most of the capacity problems in central BiH without doing anything else.
The schematic alignment and Year 2020 traffic demand on the hypothetical motorway
are shown in Figure 2.2.16. Two economic growth cases were tested, namely, the basic
scenario and the high growth scenario. The nodes (cities) are designated for presentation
purposes only; in the simulated network there are more than 20 interchanges. The
volumes represent the maximum volume on motorway segments; the expected traffic
volume actually varies link by link, however, inter-interchange variation is modest
except near Sarajevo.
A comparison is made between approximate design capacity of the motorway versus the
assigned traffic volume, as shown in Figure 2.2.17. The designated capacity of both
motorway and four-lane rural arterial varies depending on the topography.
The comparison shows that the expected volumes on most of the motorway links are far
less than capacity. In fact, they are even much less than the capacity of four-lane rural
arterial (un-interrupted flow conditions). Also, it should be taken into account that the
estimated approximate implementation costs for the motorways are roughly KM6,100
million for Samac-Metkovic, and KM1,500 million for Orasje-Zepce.
These figures show that generally it is highly unlikely that a multi-lane motorway-class facility will be required in Corridor Vc in BiH within the current study’s planning horizon.
However, there is a reason to believe that the section between Zenica and Hadzici, which
is actually the link between Sarajevo and Zenica, requires more detailed analysis to
assess the feasibility of a motorway-class facility on this link. Firstly, it has more
pronounced volumes than any other section of the assumed motorway. Secondly, it
should also be considered that this section of E-73 (Sarajevo - Zenica) was constructed to
a higher level of design standard, and was clearly intended to function as a motorway in
future with minimal widening. This means the investment cost for improving this
section to a four-lane motorway-class facility would be much less than a new motorway.
At the same time, the “widened motorway” can expect even more traffic volume than
that shown in Figure 2.2.17 because most of the volume left on the existing E-73 would
be added together in this case, which is roughly in the range of 5,200 to 11,600 veh./day
(Year 2020 High Economic Growth).
http://lnweb90.worldbank.org/ECA/Transp ... -032-3.pdf
za trud. Jel' to ista ona "Fizibiliti studija" koju je Adnan Terzić jedno milion puta spomenuo ? 
