|
|
Comparison Results of Mutilmedia and VR simulators
Abstract Comparison
-
Closer to real life: most users judged the VR
simulator as the one closer to navigating in real life. They also
appreciated the ability to change speed by increasing or decreasing
the navigation line's length, as described earlier.
-
Level of movement freedom: the VR was again the
winner in this area because of the freedom given.
-
Situation awareness skills required: the multimedia
simulator required less awareness skills to be able to resolve the problem.
-
Easier to use: most users found that the multimedia
was easier.
Technical Comparison
| Object |
Criteria |
Multimedia Simulator |
VR Simulator |
| Roads |
1- Physical storage |
996KB |
15.2KB |
|
2- Design time |
Easier to build in terms of adjustment and repositioning,
and it took less time to build. |
Harder to build, especially when trying to keep the number
of faces to a minimum |
|
3- Roads reality |
Smoother |
Sharper |
| 4- Design Cost |
1,293 polygons |
480 polygons |
| 5- Extendibility |
Easy |
Easy |
| 6- Reusability |
Easy |
Easy |
| Buildings |
1- Physical storage |
53KB |
393KB |
| 2- Design time |
short time |
short time |
| 3- Model Reality |
equally realistic |
equally realistic |
| 4- Design cost |
24 polygons |
12 polygons |
| Models |
1- Physical storage |
126 KB |
10 KB |
| 2- Design time |
difficult |
very difficult |
| 3- Design cost |
3,618 |
4,802 |
| Animation Scripts |
1- Design time |
Very easy |
Very difficult |
|
2- Animation reality |
equally realistic |
equally realistic |
|
3- Extendibility |
easy to extend |
harder to extend |
Comparison Discussions
The comparison above shows that each of the simulator has certain advantages
and disadvantages, and the choice of which one to use should be based on what
the user is trying to achieve. If the user is trying to achieve some animation
for a complex chase situation which cannot be achieved or expensive then the
best choice is the use of multimedia simulator. However, if the user is trying
to test the participant's control of the situation under pressure, then the use
of the VR simulator is to be advised, because it involves the user's driving as
well as making crucial decisions.
Project Evaluation
The research shows the capability of computer based training of raising some
valid points that should be stressed during a chase, like not overtaking around
a turn, to treat a red traffic light as a giveaway, and not overtake if there is
a junction a head. Although most of these points are standard rules which every
driver should know, the product shows that a computer based training programme
is capable of presenting situations in such a way that the user can learn or
confirm some knowledge he already has. Despite teh fact that most of the users
during the test were unfamiliar with car chase situations, most of them learned
something new, such as the giveway situation on a red light, and the fishtail maneuver
in a chase. Therefore, it is fair to say that a simple computer-based program
can be used to train people on different tasks. However, more effort is needed
to make the product more usable. Therefore, it is advisable that experts from
the police force should participate in constructing the design of different
scenarios. .
|