Table 1. Included variables in the study... | Emerald Publishing

Table 1.

Included variables in the study

Variable	Explanation	Reference (e.g.)
General opinions on construction logistics	This variable identifies how the different actors view logistics. This is important as logistics for long time have been seen as an operational issue and not strategic, and the variable allows an analysis of whether the view on logistics depend on the actor’s position in the value chain
Initiator	CLSs can be initiated by different actors, and the actors initiating have an impact on the focus of the services included. The analysis focuses on whether this was still the case and what type of CLS are most common	Fredriksson et al. (2021)
Developer/municipalities	Developer/municipality initiated CLSs focus mainly on services supporting third actors and decreasing environmental impact	Havenvid et al. (2016) and Eriksson et al. (2021)
Main contractor initiative	Main contractor-initiated CLSs focuses mainly on supporting on-site activities	Hedborg Bengtsson (2019)
Effects	Different studies have reported different types of effects of the use of logistics services. Therefore, the variable was included to understand what type of effects were related to which services and how were they experienced by different actors
Risk of increased costs	Several actors, especially main contractors and developers, have expressed fears of increased costs by the introduction of CLSs	Janné and Fredriksson (2022)
Opportunity for decreased costs	Several authors have identified the possibility of decreased costs by the introduction of CLSs	Lindén and Josephson (2013), Agapiou et al. (1998) and Janné and Fredriksson (2022)
Reduced number of transports	Several authors have identified possibilities of reduced number of transports by the introduction of CLSs	Transport for London (2013) and Janné and Fredriksson (2019)
Improved productivity (man hours and machinery)	Several authors have identified possibilities of improved productivity by the introduction of CLSs	Lindén and Josephson (2013) and Sezer and Fredriksson (2021)
Improved safety on site	The authors have identified possibilities of improved safety by the introduction of CLSs	Ekeskär and Rudberg (2016)
Reduced disturbances and improved security	The municipalities and developers have identified possibilities of decreased disturbances in vicinity of site by the introduction of CLSs	Sullivan et al. (2010) and Dubois et al. (2019)
Improved delivery precision	Several authors have identified possibilities of improved delivery precision by the introduction of CLSs	Transport for London (2013) and Thunberg and Persson (2014)
Construction logistics services	Different studies have seen CLSs include different types of services; hence the variable was included to understand what services are commonly included and used by different actors
Standard CLS	The variable allowed the analysis of whether the actors take a strategic approach to logistics and have a standard setup of logistics services, established in projects	Janné (2020)
Checkpoint	A service used to regulate the arrivals of trucks to the site by slot time booking	Ekeskär and Rudberg (2016)
Booking calendar	A service for coordinating the use of common resources, such as unloading zones, by allowing bookings of the same	Fredriksson et al. (2021)
Materials handling onsite	A service for carrying the materials from the unloading zone to the place of use	Fredriksson et al. (2021)
Bundling of material at terminal	A service for combining the materials needed for a work and delivered at the same time	Fredriksson et al. (2021)
Logistics coordinator	A person hired to plan and follow the logistics work at site, ensuring that the coordination between actors is running smoothly	Sundquist et al. (2018), Eriksson et al. (2021) and Janné and Fredriksson (2022)

Variable	Explanation	Reference (e.g.)
General opinions on construction logistics	This variable identifies how the different actors view logistics. This is important as logistics for long time have been seen as an operational issue and not strategic, and the variable allows an analysis of whether the view on logistics depend on the actor’s position in the value chain
Initiator	CLSs can be initiated by different actors, and the actors initiating have an impact on the focus of the services included. The analysis focuses on whether this was still the case and what type of CLS are most common	Fredriksson et al. (2021)
Developer/municipalities	Developer/municipality initiated CLSs focus mainly on services supporting third actors and decreasing environmental impact	Havenvid et al. (2016) and Eriksson et al. (2021)
Main contractor initiative	Main contractor-initiated CLSs focuses mainly on supporting on-site activities	Hedborg Bengtsson (2019)
Effects	Different studies have reported different types of effects of the use of logistics services. Therefore, the variable was included to understand what type of effects were related to which services and how were they experienced by different actors
Risk of increased costs	Several actors, especially main contractors and developers, have expressed fears of increased costs by the introduction of CLSs	Janné and Fredriksson (2022)
Opportunity for decreased costs	Several authors have identified the possibility of decreased costs by the introduction of CLSs	Lindén and Josephson (2013), Agapiou et al. (1998) and Janné and Fredriksson (2022)
Reduced number of transports	Several authors have identified possibilities of reduced number of transports by the introduction of CLSs	Transport for London (2013) and Janné and Fredriksson (2019)
Improved productivity (man hours and machinery)	Several authors have identified possibilities of improved productivity by the introduction of CLSs	Lindén and Josephson (2013) and Sezer and Fredriksson (2021)
Improved safety on site	The authors have identified possibilities of improved safety by the introduction of CLSs	Ekeskär and Rudberg (2016)
Reduced disturbances and improved security	The municipalities and developers have identified possibilities of decreased disturbances in vicinity of site by the introduction of CLSs	Sullivan et al. (2010) and Dubois et al. (2019)
Improved delivery precision	Several authors have identified possibilities of improved delivery precision by the introduction of CLSs	Transport for London (2013) and Thunberg and Persson (2014)
Construction logistics services	Different studies have seen CLSs include different types of services; hence the variable was included to understand what services are commonly included and used by different actors
Standard CLS	The variable allowed the analysis of whether the actors take a strategic approach to logistics and have a standard setup of logistics services, established in projects	Janné (2020)
Checkpoint	A service used to regulate the arrivals of trucks to the site by slot time booking	Ekeskär and Rudberg (2016)
Booking calendar	A service for coordinating the use of common resources, such as unloading zones, by allowing bookings of the same	Fredriksson et al. (2021)
Materials handling onsite	A service for carrying the materials from the unloading zone to the place of use	Fredriksson et al. (2021)
Bundling of material at terminal	A service for combining the materials needed for a work and delivered at the same time	Fredriksson et al. (2021)
Logistics coordinator	A person hired to plan and follow the logistics work at site, ensuring that the coordination between actors is running smoothly	Sundquist et al. (2018), Eriksson et al. (2021) and Janné and Fredriksson (2022)

Source: Authors’ own creation