New traffic arrangements put in place yesterday to accommodate the $73 million replacement of the Causeway Bay flyover caused only minor disruption to traffic - thanks in part to it being a public holiday. Some drivers were seen cutting across lanes and a Transport Department spokeswoman warned that the full effects of rerouting would be seen tomorrow. The rerouting will enable the replacement of the Causeway Bay flyover near the northwest corner of Victoria Park with a wider one to be built over the next two years. The single-lane, one-way bridge connecting eastbound traffic from Wan Chai and the Cross-Harbour Tunnel to Gloucester Road will be replaced by a two-lane, one-way flyover. The old flyover will remain in use until the new one is built. Officials say the work is necessary because constant heavy traffic on the flyover spills over and causes congestion in Victoria Park Road heading towards North Point. Wan Man-leung, a Highways Department deputy project manager, said after inspecting traffic conditions yesterday morning that some drivers were confused by the new arrangement. But he said they would soon get used to the arrangements and he did not expect any major problems tomorrow. The following arrangements are now in place: Three eastbound lanes in Victoria Park Road near the flyover are closed, replaced by three temporary lanes alongside the Causeway Bay promenade; Vehicles from the Cross-Harbour Tunnel heading for North Point have been diverted to the first exit road on the left; those heading for Causeway Bay have been diverted to the second exit road; Traffic heading towards the Hung Hing Road flyover in Wan Chai North have been directed to North Point or the Eastern Corridor highway; The speed limit on Victoria Park Road has been cut to 50km/h.