eating at work

Question

is one required to find a succah if he is to eat bread while at work? or is he not allowed to eat bread? the thinking is, that since he is out of his house anyway, can we compare it to a 'holech derech' that is patur from succah 'mipnei she'en ozvim darcham mipnei beitam'? gemar chatima tova and thanx again for the great site!