Simultaneously equalizing constituency sizes so that where a person lives no longer determines the value of their vote.

Well-known examples include the differences between urban and rural constituency sizes in many Australian states.

The current system provides for a 51-seat States, with constituency size ranging from 1,200 to 98,000 residents.

Voters mark a cross next to the name of the candidate or candidates they prefer, the number of crosses varying from one to five depending on constituency size.

Had they brought in PR, then the boundaries and constituency sizes would have been less critical.

The NDI also criticised unequal constituency sizes, claiming that they increased tribal cleavages.

Let's see how the Conservatives proposed boundary changes and equalising of constituency sizes alters things.

This is because the seats are not allocated proportionally but on the constituency level (with strongly differing constituency sizes), following the first-past-the-post system.

According to Sudan's National Elections Act of 2008, no constituency can have a population that is 15% greater or less than the average constituency size.

(There were some notable disparities in constituency sizes.)