Following arturo's brilliant question, hope it will serve some good here:
The roads in Malaysia can be categorized in three categories:
1) Federal and State roads: Numbered with yellow backgrounds i.e. route 1 is the old road from johor to perlis, B24 - selangor state road, A5 - perak state road. Monitored by Federal, State, and District JKR offices
2) Toll Highways - need no examples, road numbers starts with E, E1 - North South Expressway. Monitored by LLM - Lembaga Lebuhraya Malaysia
3) City Council and Townhalls - these are the roads in towns and taman perumahan (no number, just starting a pilot numbering program in Shah Alam). Monitored by respective town governing body i.e. MPAJ, MBSA, MPK
To perform repairs, cable/pipe laying, etc the company must inform these governing bodies. Similarly, you must also report any damages/suggestions to the mentioned governing bodies. However, you may report to JKR's Hotline as they adopt no-wrong-door policy which means any reports will be channeled to the respective authorities. It may be better and quicker to direct your report to the right authority in the first place i.e. For the highways, it may be better to report to the governing body i.e. PLUS, MEX, KESAS as they have their own hotlines.
Now that we know, we can all contribute for better road conditions :)