**3. Life improving advances in human navigation systems**

In the first part of the book, chapters are oriented on advances in modern technologies improving various real life's aspect of populations. A walking support system that takes into account each user's health conditions, needs and preferences is a real possibility for utilizing of navigation systems by common users. The eventual system can be developed by integrating different partial systems into a single system. From a viewpoint of active users, it is very important to establish and conduct an interactive feedback. Based on the web questionnaire survey, the system usefulness can be increased for selecting a walking course. It is evident that the system should be used by different types of information terminals approximately in the same way. And, a system operation must be evaluated according to the purpose of effectively supporting users' walking activities. I hope that a functional and confirmed walking support system will be successfully widespread also in many cities and/or countries.-

A development of appropriate navigation systems for visually impaired persons that are relying on guide canes in order to walk outside for avoiding any obstructions or hazardous situations is very important. Therefore, a tactile pavement detection system used the image recognition can be considered to advantage. Of course, some experiments must be conducted for detecting the tactile pavement and for identifying the shape of tactile patterns. For better proposal, the software environment including a special platform as guidance tools can be utilized. For notifying visually impaired persons, accurate auditory outputs must be included. A development of the tactile pavement detection system can be prospective for easily detected and navigated purposes of serving for visually impaired persons.-

Also utilizing of navigation systems specialized for a pipeline industry can lead for life improving. From a viewpoint of surrounding environments and a safety of civilian's lives, it is important to eliminate negative influences of potential pipeline leakages. And from these reasons, an attention should be focused on a pipeline inspection gauge that could accomplish a variety of pipeline defects. Because inspections should be executed effectively, then these defects must be localized precisely by installing various detecting and positioning sensors. So, a proposal of relevant navigation systems can be prepared application mechanisms with advanced position methods researched for improving the overall positioning precision. With regard to demands, proposed methods and research conclusions are expected to be verified by simulation experiments using the indoor wheel robot platform and appropriate experiments.-

I hope that beginners and professionals in the field would benefit by going through details given in these chapters of the book.-
