Hi,
Ours is 3.50 Mbps, which is where it usually is, and we are just off Baris Mancho, in the heart of the Gaza strip, so if the road works were affecting internet speeds I would of thought we would have noticed.
Phone the Internet Helpdesk, on 4440375, press 99 for English, and tell the operator your Internet speed is very slow and ask them to turn it up. Normally they can do it whilst you are on the phone to them.
Be careful though, sometimes in older properties the wiring can't handle handle the high speeds, high for Calis that is, if our goes above 4Mbps we have problem with the connection dropping out every few minutes.
Cheers
Gordon