If you need a road connection to outside the loop or if you need a connection to a straight road using a gatehouse is very useful. If these two houses are large insulea or small casa plaza tiles should get perfect labor access.In a real city it could look like this: [This message has been edited by philon (edited 06-20-2004 @ 10:52 AM).]
For good labor access a labor seeker (citizen) needs to pass houses regularly. Certainly the population and number of these houses plays a role. For instance a large tent will give much better access than a small tent. Smillarly a grand insulea will be better than a large tent. In road designs a good way is to force labor citizens a way wich leads to houses. One option is to use a loop like the one below. Another option, when loops are not possible is to use dead end roads with a house or houses after a reasonable distance. Certainly a road ending with a gatehouse will work as well if the road isnt dead end.