That's where you'll deal with issues such as traffic counts, site orientation, and market analysis.

FORBES: What Does It Take To Start A Hotel?

The research team used data from a number of sources including air pollution reports, traffic counts and tax offices.

BBC: US researchers map carbon emissions at street level

For example, despite similar traffic counts at 8pm and 7pm, a Facebook post at 7pm will result in more clicks on average than posting at 8pm.

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Cyclists are disputing TfL's claims that they make up 6% of traffic, arguing that the true figure given by the body's own 24-hour counts in 2010 was 16%.

BBC: TfL plans for Blackfriars Bridge spark cyclists protest