TripAdvisor announced the results of its Cities Survey, a look into how travelers and locals view 40 key tourist cities around the world. The results were compiled based on more than 75,000 responses to a survey sent to those who have recently written TripAdvisor reviews on the featured cities.

Tokyo was the most highly decorated world city ranked number one for best taxi services, friendliest taxi drivers, best public transportation, cleanest streets, and safety.

Overall Top Performers:

Category	1st place	2nd place	3rd place
Friendliest locals	Cancun	Tokyo	Lisbon
Friendliest taxi drivers	Tokyo	Cancun	Singapore
Best taxi services	Tokyo	Singapore	Dubai
Cleanest streets	Tokyo	Singapore	Zurich
Ease of getting around	Zurich	Vienna	Singapore
Best public transport	Tokyo	Zurich	Munich
Best value for money	Lisbon	Budapest	Bangkok
Best for shopping	New York City	Bangkok	Dubai
Safest city	Tokyo	Singapore	Dubrovnik

source : http://www.multivu.com/mnr/57943-tripadvisor-world-city-survey-tokyo-rated-highly-among-global-travelers