The city's decline continued into the early 2000s. In 2001, the Rent Control Act, which had protected the low-income residents and smaller businesses within the city centre from arbitrary rental hikes, was repealed. Consequently, residents moved out of the city's historical core, leaving its colonial-era buildings in disrepair. Meanwhile, an incoherent urban planning policy and poor traffic management led to worsening traffic congestion, while decades of brain drain also took its toll as the city lacked the expertise to regulate urban development.