A WA parliamentary question on notice regarding changes to the Kwinana Freeway Busway, specifically concerning bus merging with general traffic and potential impacts on safety and traffic flow. The response details traffic management measures, accident data, and public awareness campaigns.

AnsweredQoN 3067Legislative Assembly
Asked
17 August 2004
Portfolio
Planning and Infrastructure

QuestionView source ↗

(b) how many buses per day are now operating in general freeway traffic; (c) how many buses per day are using the labelled buslane; (d) what measures are in place to ensure that this lane is not used by general traffic; (e) what effect has the removal of one lane of traffic had upon the general traffic using the Kwinana Freeway; (f) how are buses managing their exit at Canning Bridge; (g) what warnings have general motorists been given to advise them that buses are now operating in general traffic, and will need to move rapidly from the labelled bus lane to the far side in order to exit traffic; and (h) since these changes were introduced, have there been any accidents involving buses and general traffic?
(c) how many buses per day are using the labelled buslane; (d) what measures are in place to ensure that this lane is not used by general traffic; (e) what effect has the removal of one lane of traffic had upon the general traffic using the Kwinana Freeway; (f) how are buses managing their exit at Canning Bridge; (g) what warnings have general motorists been given to advise them that buses are now operating in general traffic, and will need to move rapidly from the labelled bus lane to the far side in order to exit traffic; and (h) since these changes were introduced, have there been any accidents involving buses and general traffic?
(d) what measures are in place to ensure that this lane is not used by general traffic; (e) what effect has the removal of one lane of traffic had upon the general traffic using the Kwinana Freeway; (f) how are buses managing their exit at Canning Bridge; (g) what warnings have general motorists been given to advise them that buses are now operating in general traffic, and will need to move rapidly from the labelled bus lane to the far side in order to exit traffic; and (h) since these changes were introduced, have there been any accidents involving buses and general traffic?
(e) what effect has the removal of one lane of traffic had upon the general traffic using the Kwinana Freeway; (f) how are buses managing their exit at Canning Bridge; (g) what warnings have general motorists been given to advise them that buses are now operating in general traffic, and will need to move rapidly from the labelled bus lane to the far side in order to exit traffic; and (h) since these changes were introduced, have there been any accidents involving buses and general traffic?
(f) how are buses managing their exit at Canning Bridge; (g) what warnings have general motorists been given to advise them that buses are now operating in general traffic, and will need to move rapidly from the labelled bus lane to the far side in order to exit traffic; and (h) since these changes were introduced, have there been any accidents involving buses and general traffic?
(g) what warnings have general motorists been given to advise them that buses are now operating in general traffic, and will need to move rapidly from the labelled bus lane to the far side in order to exit traffic; and (h) since these changes were introduced, have there been any accidents involving buses and general traffic?
(h) since these changes were introduced, have there been any accidents involving buses and general traffic?
(b&c) All buses using the Kwinana Freeway Busway are required to merge with general traffic at a point just south of the Narrows Bridge. For safety reasons this merge occurs over several hundred metres. This process has been occurring since 25 July 2004 and no problems have been reported by bus drivers or the traffic management experts who have been monitoring this process. Buses are currently required to enter the Busport via Mounts Bay Road and, consequently, need to merge across traffic. There are currently 494 buses travelling north on the Kwinana Freeway Busway north of Canning Bridge on a typical weekday along with an additional 101 buses that have always entered general traffic from the South Perth area via the Judd Street on ramp. (d) The new exit created from the barriered bus lane is delineated from general traffic by a combination of flexible bollards and yellow lane marking. After a certain point, where the buses are permitted to merge, the bollards cease and lane marking prevails until a point on the southern side of the Narrows Bridge where the bus lane ends. Traffic management including signage and delineation was carefully planned and is working successfully. (e) Careful planning to accommodate the bus lane change provided for a compensating additional general traffic lane on the western edge of the Freeway at the commensurate point where the buses exit the barriered Busway. Accordingly, there has been no loss in general traffic capacity. (f) The bus entry and exit arrangements at Canning Bridge have not changed. (g) The Buslane temporary barrier exit was designed to allow buses to change lanes in a normal manner by providing sufficient travel distances between lane changes prior to the exit ramp. An initial media advertising campaign was instigated to advise motorists, along with messages on Main Roads' electronic message freeway signs for the first week. No permanent warning signage was considered necessary and subsequent observations and acceptance by the general public supported this decision (h) I am aware that there have been two accidents involving buses in the area south of the Narrows Bridge since the new arrangements were put into effect. Obviously this is a very busy area of traffic, particularly during peak periods and accidents occurring there are not untypical. It is therefore not surprising that a bus may be involved in an accident, indeed buses are involved in accidents in other parts of the City as well. However, travel on a Transperth bus remains one of the safest forms of transport available. There has been no indication that the accidents in question were caused by any fault in the modified traffic management arrangements.
There are currently 494 buses travelling north on the Kwinana Freeway Busway north of Canning Bridge on a typical weekday along with an additional 101 buses that have always entered general traffic from the South Perth area via the Judd Street on ramp. (d) The new exit created from the barriered bus lane is delineated from general traffic by a combination of flexible bollards and yellow lane marking. After a certain point, where the buses are permitted to merge, the bollards cease and lane marking prevails until a point on the southern side of the Narrows Bridge where the bus lane ends. Traffic management including signage and delineation was carefully planned and is working successfully. (e) Careful planning to accommodate the bus lane change provided for a compensating additional general traffic lane on the western edge of the Freeway at the commensurate point where the buses exit the barriered Busway. Accordingly, there has been no loss in general traffic capacity. (f) The bus entry and exit arrangements at Canning Bridge have not changed. (g) The Buslane temporary barrier exit was designed to allow buses to change lanes in a normal manner by providing sufficient travel distances between lane changes prior to the exit ramp. An initial media advertising campaign was instigated to advise motorists, along with messages on Main Roads' electronic message freeway signs for the first week. No permanent warning signage was considered necessary and subsequent observations and acceptance by the general public supported this decision (h) I am aware that there have been two accidents involving buses in the area south of the Narrows Bridge since the new arrangements were put into effect. Obviously this is a very busy area of traffic, particularly during peak periods and accidents occurring there are not untypical. It is therefore not surprising that a bus may be involved in an accident, indeed buses are involved in accidents in other parts of the City as well. However, travel on a Transperth bus remains one of the safest forms of transport available. There has been no indication that the accidents in question were caused by any fault in the modified traffic management arrangements.
(d) The new exit created from the barriered bus lane is delineated from general traffic by a combination of flexible bollards and yellow lane marking. After a certain point, where the buses are permitted to merge, the bollards cease and lane marking prevails until a point on the southern side of the Narrows Bridge where the bus lane ends. Traffic management including signage and delineation was carefully planned and is working successfully. (e) Careful planning to accommodate the bus lane change provided for a compensating additional general traffic lane on the western edge of the Freeway at the commensurate point where the buses exit the barriered Busway. Accordingly, there has been no loss in general traffic capacity. (f) The bus entry and exit arrangements at Canning Bridge have not changed. (g) The Buslane temporary barrier exit was designed to allow buses to change lanes in a normal manner by providing sufficient travel distances between lane changes prior to the exit ramp. An initial media advertising campaign was instigated to advise motorists, along with messages on Main Roads' electronic message freeway signs for the first week. No permanent warning signage was considered necessary and subsequent observations and acceptance by the general public supported this decision (h) I am aware that there have been two accidents involving buses in the area south of the Narrows Bridge since the new arrangements were put into effect. Obviously this is a very busy area of traffic, particularly during peak periods and accidents occurring there are not untypical. It is therefore not surprising that a bus may be involved in an accident, indeed buses are involved in accidents in other parts of the City as well. However, travel on a Transperth bus remains one of the safest forms of transport available. There has been no indication that the accidents in question were caused by any fault in the modified traffic management arrangements.
(e) Careful planning to accommodate the bus lane change provided for a compensating additional general traffic lane on the western edge of the Freeway at the commensurate point where the buses exit the barriered Busway. Accordingly, there has been no loss in general traffic capacity. (f) The bus entry and exit arrangements at Canning Bridge have not changed. (g) The Buslane temporary barrier exit was designed to allow buses to change lanes in a normal manner by providing sufficient travel distances between lane changes prior to the exit ramp. An initial media advertising campaign was instigated to advise motorists, along with messages on Main Roads' electronic message freeway signs for the first week. No permanent warning signage was considered necessary and subsequent observations and acceptance by the general public supported this decision (h) I am aware that there have been two accidents involving buses in the area south of the Narrows Bridge since the new arrangements were put into effect. Obviously this is a very busy area of traffic, particularly during peak periods and accidents occurring there are not untypical. It is therefore not surprising that a bus may be involved in an accident, indeed buses are involved in accidents in other parts of the City as well. However, travel on a Transperth bus remains one of the safest forms of transport available. There has been no indication that the accidents in question were caused by any fault in the modified traffic management arrangements.
(f) The bus entry and exit arrangements at Canning Bridge have not changed. (g) The Buslane temporary barrier exit was designed to allow buses to change lanes in a normal manner by providing sufficient travel distances between lane changes prior to the exit ramp. An initial media advertising campaign was instigated to advise motorists, along with messages on Main Roads' electronic message freeway signs for the first week. No permanent warning signage was considered necessary and subsequent observations and acceptance by the general public supported this decision (h) I am aware that there have been two accidents involving buses in the area south of the Narrows Bridge since the new arrangements were put into effect. Obviously this is a very busy area of traffic, particularly during peak periods and accidents occurring there are not untypical. It is therefore not surprising that a bus may be involved in an accident, indeed buses are involved in accidents in other parts of the City as well. However, travel on a Transperth bus remains one of the safest forms of transport available. There has been no indication that the accidents in question were caused by any fault in the modified traffic management arrangements.
(g) The Buslane temporary barrier exit was designed to allow buses to change lanes in a normal manner by providing sufficient travel distances between lane changes prior to the exit ramp. An initial media advertising campaign was instigated to advise motorists, along with messages on Main Roads' electronic message freeway signs for the first week. No permanent warning signage was considered necessary and subsequent observations and acceptance by the general public supported this decision (h) I am aware that there have been two accidents involving buses in the area south of the Narrows Bridge since the new arrangements were put into effect. Obviously this is a very busy area of traffic, particularly during peak periods and accidents occurring there are not untypical. It is therefore not surprising that a bus may be involved in an accident, indeed buses are involved in accidents in other parts of the City as well. However, travel on a Transperth bus remains one of the safest forms of transport available. There has been no indication that the accidents in question were caused by any fault in the modified traffic management arrangements.
(h) I am aware that there have been two accidents involving buses in the area south of the Narrows Bridge since the new arrangements were put into effect. Obviously this is a very busy area of traffic, particularly during peak periods and accidents occurring there are not untypical. It is therefore not surprising that a bus may be involved in an accident, indeed buses are involved in accidents in other parts of the City as well. However, travel on a Transperth bus remains one of the safest forms of transport available. There has been no indication that the accidents in question were caused by any fault in the modified traffic management arrangements.

AnswerView source ↗

Answered
26 November 2004
Responded by
Minister for Planning and Infrastructure
Response time
101 days
(a) The Kwinana Freeway Busway is predominantly continuing to operate in the same form as it has for the last few years. However, in the area near Judd Street on the north bound Busway, buses are now leaving the barriered Busway and, over a safe distance, merging with general traffic. The traffic management change has been necessary as buses cannot enter or leave the Esplanade Busport via the William Street Bridge arrangement because the bridge is currently being demolished. For some months buses have been using alternative routes in order to provide for New MetroRail works and to accommodate the final construction stages of the Perth Exhibition and Convention Centre. When bus route changes have been required they have been professionally planned and managed by traffic management experts and undergo thorough safety reviews.
(b&c) All buses using the Kwinana Freeway Busway are required to merge with general traffic at a point just south of the Narrows Bridge. For safety reasons this merge occurs over several hundred metres. This process has been occurring since 25 July 2004 and no problems have been reported by bus drivers or the traffic management experts who have been monitoring this process. Buses are currently required to enter the Busport via Mounts Bay Road and, consequently, need to merge across traffic.
There are currently 494 buses travelling north on the Kwinana Freeway Busway north of Canning Bridge on a typical weekday along with an additional 101 buses that have always entered general traffic from the South Perth area via the Judd Street on ramp.
(d) The new exit created from the barriered bus lane is delineated from general traffic by a combination of flexible bollards and yellow lane marking. After a certain point, where the buses are permitted to merge, the bollards cease and lane marking prevails until a point on the southern side of the Narrows Bridge where the bus lane ends. Traffic management including signage and delineation was carefully planned and is working successfully.
(e) Careful planning to accommodate the bus lane change provided for a compensating additional general traffic lane on the western edge of the Freeway at the commensurate point where the buses exit the barriered Busway. Accordingly, there has been no loss in general traffic capacity.
(f) The bus entry and exit arrangements at Canning Bridge have not changed.
(g) The Buslane temporary barrier exit was designed to allow buses to change lanes in a normal manner by providing sufficient travel distances between lane changes prior to the exit ramp. An initial media advertising campaign was instigated to advise motorists, along with messages on Main Roads' electronic message freeway signs for the first week. No permanent warning signage was considered necessary and subsequent observations and acceptance by the general public supported this decision
(h) I am aware that there have been two accidents involving buses in the area south of the Narrows Bridge since the new arrangements were put into effect. Obviously this is a very busy area of traffic, particularly during peak periods and accidents occurring there are not untypical. It is therefore not surprising that a bus may be involved in an accident, indeed buses are involved in accidents in other parts of the City as well. However, travel on a Transperth bus remains one of the safest forms of transport available. There has been no indication that the accidents in question were caused by any fault in the modified traffic management arrangements.

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