Stockholm | Construction Logistics
Description
The transport sector faces a number of challenges. In addition to contributing to emissions, they also cause noise pollution, congestion and wear and tear of the road infrastructure. Today, the majority of freight transports in Stockholm city is carried out by truck and the trend is towards more truck transport. In particular, an increase in construction and mass transport is expected as a result of increased housing construction and infrastructure projects. Heavy truck transport in densely populated areas, where access is limited, is problematic. In addition, the capacity utilisation of truck transport is low due to vehicle restrictions on city roads.
In connection with the extension of the metro from Kungsträdgården to Nacka, large quantities of blasted rock mass will have to be transported from the tunnels. On Blasieholmen there is a working tunnel left over from when Kungsträdgårdens station was built. The same working tunnel will be used for the extension of the metro, which started in 2020. Around 500 tonnes of blasted rock per day will need to be removed from the tunnel. In total, it is expected that around 500,000 tonnes will need to be removed through this tunnel.
Given the location of the tunnel in central Stockholm, the City of Stockholm has expressed its willingness to explore the possibility of using maritime transport for bulk transport. However, sea transport of rock mass is a relatively unused option and there is uncertainty about the barriers involved.
Within the EU project Civitas Eccentric, the City of Stockholm Traffic Office (TK) investigated the possibilities of using waterways for different types of freight transport in order to find efficient solutions. An investigation of sea transport from Blasieholmen was also included and compared to a solution using heavy trucks.
In October 2019, the Stockholm Region's administration for the extended metro (FUT) and the City of Stockholm conducted a pilot experiment at Blasieholmen to study sea transport as an alternative for removing the rock mass
.
The work tunnel at Blasieholmen is currently filled with around 6,000 tonnes of fill material. Around 150 tonnes of these were used during the pilot and loaded by wheel loader onto a vessel next to the quay. The time of loading and the noise impact of the transport and loading were measured on site.
The assessment made was that it cost roughly the same to remove rock mass by truck or ship, given the assumptions used in the evaluation calculations. A decisive factor was the daily unloading weight: the more that was unloaded, the more efficient sea transport becomes due to economies of scale.
In terms of climate impact, sea transport was better than truck transport despite the fact that the unloading point is further away. The evaluation recommended that the management of the extended metro would benefit from trying to include climate impact in the tender evaluation so that climate-smart options would be rewarded, and uses the means of transport that is most socio-economically advantageous based on the bids. The difference in equivalent noise levels between the options was very small and the limit values were not exceeded.
In connection with the extension of the metro from Kungsträdgården to Nacka, large quantities of blasted rock mass will have to be transported from the tunnels. On Blasieholmen there is a working tunnel left over from when Kungsträdgårdens station was built. The same working tunnel will be used for the extension of the metro, which started in 2020. Around 500 tonnes of blasted rock per day will need to be removed from the tunnel. In total, it is expected that around 500,000 tonnes will need to be removed through this tunnel.
Given the location of the tunnel in central Stockholm, the City of Stockholm has expressed its willingness to explore the possibility of using maritime transport for bulk transport. However, sea transport of rock mass is a relatively unused option and there is uncertainty about the barriers involved.
Within the EU project Civitas Eccentric, the City of Stockholm Traffic Office (TK) investigated the possibilities of using waterways for different types of freight transport in order to find efficient solutions. An investigation of sea transport from Blasieholmen was also included and compared to a solution using heavy trucks.
In October 2019, the Stockholm Region's administration for the extended metro (FUT) and the City of Stockholm conducted a pilot experiment at Blasieholmen to study sea transport as an alternative for removing the rock mass
.
The work tunnel at Blasieholmen is currently filled with around 6,000 tonnes of fill material. Around 150 tonnes of these were used during the pilot and loaded by wheel loader onto a vessel next to the quay. The time of loading and the noise impact of the transport and loading were measured on site.
The assessment made was that it cost roughly the same to remove rock mass by truck or ship, given the assumptions used in the evaluation calculations. A decisive factor was the daily unloading weight: the more that was unloaded, the more efficient sea transport becomes due to economies of scale.
In terms of climate impact, sea transport was better than truck transport despite the fact that the unloading point is further away. The evaluation recommended that the management of the extended metro would benefit from trying to include climate impact in the tender evaluation so that climate-smart options would be rewarded, and uses the means of transport that is most socio-economically advantageous based on the bids. The difference in equivalent noise levels between the options was very small and the limit values were not exceeded.
Innovation and Relevance
Waterways are generally an underused method of transportation, especially in Stockholm as the inner city is largely made up by islands, however, very few projects or adapted solutions include the water as method of transportation.
An increased use of the waterways for freight transport would make for a more dynamic and flexible use of the public space on land.
An increased use of the waterways for freight transport would make for a more dynamic and flexible use of the public space on land.
Relation to other urban Logistics Projects
Not relevant
Plans for Future Development
In early autumn 2021, a unique collaboration between the Office of Urban Development and the Stockholm Region's administration for the expanded metro (FUT) was launched. The agreement was signed in September 2021 and involves the mass logistics centre in Norra Djurgårdsstaden receiving and processing the rock blasted out of the tunnels for the new metro from Kungsträdgården. The material will be transported by barge to the mass logistics centre, which is estimated to save over 50,000 heavy truck journeys through central Stockholm and the equivalent of 750,000 tonnes. In addition, an equal amount of heavy truck transport will be saved by not having to purchase crushed material. In total, this is estimated to save up to 100,000 transports within the city.
Impressions
Fotocredits: © Stockholm Stad
