Allow for

To allow for means to leave a margin to compensate for a setback or contingency of some sort.

• I should get there in half an hour, but , allowing for traffic, it might take me a bit longer. 
• You have to make allowances for his rudeness: he had a difficult childhood, and he's French.
• We do not allow for any mistakes on this team; one error and you're out.

It does not mean the same as to allow, but the language is in flux, and "allow for" is taking on new functions, so this article may soon be obsolete. 

Consider also the verb to enable, which is often what you are looking for.

Other verbs that you might use to give your reader a break from allow: facilitate, empower, make (it) possible, prepare, equip, clear/pave  the way for, motivate, precipitate, lead to, usher in, bring about.