buckworks - 3:03 pm on Sep 20, 2010 (gmt 0)
does parking domain produce any traffics
Only if it's the kind of domain name that people are likely to type in.
The domain names most likely to get type-in traffic are exact matches for common search queries. Anything else will wait a long time between visitors if all you do is park them.
Developing a site would be more productive, as long as you promoted it effectively and it's good enough quality that other webmasters were willing to link to it.