Networked in real time, more cost-effective outcome

With some 60 flights a day, Jade-Weser Airport is of great significance in the Friesland/Wilhelmshaven area, so it was important to deliver high quality for the asphalt pavement. A SUPER 1900-3i – equipped with WITOS Paving Plus - was used as the primary paver to pave two asphalt base courses (pre-profile and base course). For the final paving operation, namely the surface course, three SUPER pavers worked “hot to hot”.

The highlight of the construction project for all those involved was the premiere of WITOS Paving Plus – and above all, the productivity progress associated with it - because the innovative V?GELE solution enabled the pavers to operate continuously. The experienced paving team was delighted to find that fewer mix trucks than planned were actually required. WITOS Paving thus very quickly demonstrated the scale of the optimization potential it opens up for customers and users. “When you see how you can get a little bit better every day, it’s incredibly motivating,” said Senior Site Manager, Tim Gassmann.

WITOS Paving Plus networks all those involved in the process in real time

This positive impression is not surprising. WITOS Paving networks the supervisors at the asphalt mixing plant, the truck drivers from the transport company and the whole paving team on site. The system gives planning engineers and site managers a full overview of the current project. Potential disruptions and obstacles to the construction process are picked up more quickly, which gives those involved more options for dealing with them. They can immediately instigate measures to optimize the job site and correct deviations from the plan in real time.

Precise planning in advance

Process optimization with WITOS Paving Plus starts with WITOS Paving Control. This is what V?GELE calls the planning and control module, and it allows convenient wizard-based project planning, systematically leading users through the planning process and helping cover everything. In concrete terms, this is effected on the site manager’s or job site planner’s PC; in the case of Georg Koch GmbH, the PC is in the office of Senior Site Manager Tim Gassmann in Westerstede.

”The system impressed us a lot right back at the planning stage, because it simply calculated a lot of the values itself - for example, the quantity of asphalt required. If the capacity of the planned mixing plant is too low, the system issues a warning.” This was the case with some of the planned strips in Wilhelmshaven, which was why, at an early stage, Gassmann arranged a second mixing plant to cover those spikes.

Digital integration of the mixing plant

The WITOS Paving Materials module integrates the mixing plant in the system. One of the benefits is that mix can be ordered dynamically. This means that WITOS Paving Plus reports to the mixing plant via a server-to-server interface when a mix truck is to set off for the job site. “As the mixing supervisor, this is a great thing for me. The system already knows what tonnage of which mix is required, so I can get the next truck ready to go in a flash,” says Manuel Weyerts from the Wilhelmshaven asphalt mixing plant of Ems-Jade-Mischwerke. “The delivery note is digital too, and is sent straight to the site manager”. A paper delivery note is produced as well, if this is a legal requirement.

Truck app reports estimated time of arrival

As soon as a mix truck departs for the job site, the WITOS Paving Transport module reports it to the site manager via server in the form of an estimated time of arrival (ETA for short) on the job site. This information means that at all times, the site manager is aware of how many tonnes of mix are en route. As a consequence, he can react quickly and easily to the current logistics situation – by requesting extra or fewer trucks. The consequence: greater paving quality, as continuous paving is guaranteed, with increased cost-effectiveness as a result of reduced downtime.

This is another benefit of WITOS Paving Plus: the system records waiting time automatically and digitally by means of geofencing. The paver automatically detects incoming trucks in this process. The only prerequisite for integrating trucks in the system as a whole is to install the WITOS Paving Transport Android app and to activate it prior to starting work.

Reliable realtime data on the job site

WITOS Paving Plus also found favour with mix truck drivers within a very short space of time. “Waiting times on the job site occasionally lead to discussions with contractors. WITOS Paving Plus cleanly and fairly documents for both partners when I actually arrived with my truck and how long I was on the job site” says one driver.

Works Supervisor Theo Hülsmayer recorded incoming mix trucks on the job site. To do this, he used the WITOS Paving JobSite module on his tablet. He also used to measure the distance paved with a hodometer. WITOS Paving meant that he was soon able to dispense with this manual work because WITOS Paving Plus records the distance using its own hodometer. This data is then compared to the GPS values. The result: a paved distance recorded accurate to the metre. “The data from WITOS Paving Plus is extremely accurate. You can rely on the system,” says Hülsmayer. The reason for this is explained by Jürgen Brenzinger from V?GELE: “Compared to third-party suppliers, we have the key advantage that we can access the machine data directly.”

Valuable support, simple to operate

Ease of operation is at least as important as accurate function. “WITOS Paving is extremely practical. It can simply be used, whatever the weather. The software functions are easy to understand. As a result I was quickly able to see what key added value the system offers. I wouldn’t want to be without it now”, insists Hülsmayer.

On the job site, it is then the JobSite module of WITOS Paving Plus which comes into play. This visualizes for the site manager on a tablet or outdoor PC all the key paving parameters and in particular, information about the ETA of mix trucks. Key details about the current paving situation are provided to the paver operator, as well as to the site manager. Important information, including construction progress and paving temperature, is provided directly on the colour display of the paver operator’s ErgoPlus 3 console. The number of mix trucks and the quantity of mix currently en route are also displayed to the paver operator.

Added value with a cash value

A particularly clear example of the value WITOS Paving Plus adds for users and clients is improved planning of the trucks required: according to the system, 13 mix trucks were needed on the first paving day to supply the three V?GELE pavers with mix. The Koch team initially trusted in its own experience and used 15 trucks.

The evaluation then followed. On WITOS Paving Plus, this is carried out in the Analysis module, the statistics and documentation tool. It allows construction projects to be assessed objectively and also sends daily job site reports to a defined list of recipients. This enables contractors to learn from each day’s paving operations and gain information for the next day. Site managers obtain plenty of information from clear graphs and charts - for example about paving status, paving temperature and truck waiting times. Valuable extra information acquired from the statistics by the Georg Koch GmbH team was that 13 trucks really would have been enough, two fewer than were actually used.

For the next day’s paving operations, therefore, site management ordered only the number of mix trucks calculated by WITOS Paving Plus - saving cash every day as a result of this step alone. Despite the reduced number of trucks, there were no interruptions.

Over and above this, the job site reports from the job site at Jade-Weser Airport demonstrate what a significant contribution the V?GELE solution makes to process optimization in terms of quality and efficiency. “We were really impressed by how much we learned and what simple tools enabled us to get more out of our technology and the processes,” said Tim Gassmann.

Ludwigshafen am Rhein / February 2020

Background information on asphalt paving at Jade-Weser Airport

Asphalt paving without joints and with crown

The asphalt runway at Jade-Weser Airport consists of two asphalt base courses and one surface course. The base courses were paved by a SUPER 1900-3i. This tracked paver was equipped with WITOS Paving Plus.

When the final surface course was paved, the primary paver was supported by a SUPER 1600-3i and a SUPER 1800-3i, with these pavers working hot to hot with an overlap of some 20 cm – so without joints.

The paving strips were selected so as not to create a centre joint: the SUPER 1900-3i worked a width of 7.5 m in the centre of the runway and paved a crown. Beside it, the two other V?GELE pavers paved two strips with a transverse slope, creating a width of 15 m. The primary paver finally paved the outer strips. The overall width is 30 m.

Background information about WITOS Paving Plus and the five modules

Five modules – the right one for everyone involved in the process

WITOS Paving Plus consists of five networked complementary modules. There is one for each of the different people involved in the process, from the mixing plant supervisor to the truck driver to the site manager. The five modules are:

WITOS Paving Control

Planning and control module with wizard function for convenient planning and monitoring of the current construction project

WITOS Paving Materials

Mixing plant module for just-in-time supply of the job site by means of dynamically-cycled delivery

WITOS Paving Transport

Transport module for mix trucks; updates the ETA displayed on the basis of current position

WITOS Paving JobSite

Job site module for efficient process management during the construction process

WITOS Paving Analysis

Analysis module for documenting and evaluating construction projects

Equipped with the new system, the paving team got to work – supported for the first few metres by Jürgen Brenzinger, an experienced application expert from V?GELE, who was on hand to give advice and support.

Background information on WITOS Paving Plus in general

Increased quality and efficiency for asphalt job sites: WITOS Paving Plus from V?GELE

WITOS Paving Plus is a networked system solution for process optimization and documentation which consists of five complementary modules for the various people involved in the process - from the mixing plant supervisor to the truck driver to the site manager. The data from the V?GELE solution is extremely accurate, as WITOS Paving has direct access to the machine data of SUPER pavers.

WITOS Paving Plus enables contractors to analyse and optimize their processes even retrospectively - and thus learn for the future from every construction project. In addition, the V?GELE solution satisfies digitalization and documentation requirements for job sites - such as those increasingly being placed on contractors by authorities supervising road construction in more and more markets.

In addition to the high-end version WITOS Paving Plus, V?GELE supplies a less complex basic version in WITOS Paving Docu.

Result

With WITOS Paving Plus, the paving team from Georg Koch GmbH achieved the following productivity increases: