How is the impact on traffic, existing services and the urban environment minimized?

Q: How is the impact on traffic, existing services and the urban environment minimized?

The impact on traffic, existing services and the urban environment is minimized through trenchless technologies, logistical planning, interference studies, localized wells, topographic control, auscultation and coordination with administrations and network owners. The objective is to execute the subway infrastructure, reducing open-cut excavations, prolonged cuts, detours, noise, dust and occupation of public roads. The main measures include concentrating the work in attack and reception shafts, reviewing affected services, planning traffic and access, controlling settlements, selecting the appropriate tunnel boring machine, managing noise, sludge and waste, and coordinating permits and work windows with the agents involved. In dense urban environments, feasibility depends as much on the excavation method as on implementation, access, materials management and deformation control.

Impact on traffic, existing services and the urban environment is minimized through a combination of trenchless technologies, logistical planning, interference studies, localized wells, topographic control, monitoring and coordination with administrations and network owners.. The objective is to execute the subway infrastructure reducing open pit excavations, prolonged cuts, detours, noise, dust and occupation of public roads.

In urban projects of pipe ramming, microtunneling in terrestrial and subway applications o infrastructure crossings, The key is to concentrate the intervention on attack and reception wells, keep the subway advance under control and protect the networks and infrastructures in service.

Measures to reduce urban impact

Execution WITHOUT trench in front of open excavation: by working below ground level, longitudinal trenches, traffic cuts, pavement replacement, impact on businesses, neighborhood nuisances and risks associated with existing services are reduced.

Localized implantation of wells: the work is concentrated on specific points by means of vertical pits for driving and microtunneling, This allows to limit the occupation of public roads and to better organize access, stockpiling, hoisting and machinery circulation.

Preliminary study of affected services: Water, sewage, electricity, gas, telecommunications, drainage, nearby foundations and other buried infrastructures are checked prior to execution. When necessary, surveys, surveys, topographical checks or coordination with the owners of the services are carried out.

Traffic and access planning: The planning includes detours, work phases, supply schedules, transportation routes, loading and unloading zones, signage, fencing, pedestrian routes and emergency access. This planning reduces interference with urban mobility and economic activity.

Settlement control and auscultation: in urban areas or under critical infrastructures, ground movements, buildings, roadways, roads, utilities and nearby structures are monitored. This control helps to detect behavioral deviations and apply early corrective measures.

Adequate selection of tunnel boring machine: the choice between open shield, EPB tunnel boring machine o hydro shield influences front control, ground stability and the reduction of risks of subsidence or loss of material.

Noise, dust, sludge and waste management: systems for extraction, transport, separation, cleaning, pumping and environmental management are organized to reduce nuisances, keep the work area tidy and comply with municipal or environmental requirements.

Coordination with administrations and infrastructure owners: at crossings under roads, railroads, waterways, urban networks or sensitive areas, early coordination allows for the adjustment of permits, operating conditions, work windows and control requirements.

Why trenchless technologies are useful in cities

Trenchless technologies allow pipelines to be laid under streets, roads, railways, waterways or existing utilities without opening a continuous trench on the surface. This is particularly useful when the aim is to maintain traffic, maintain services in operation, reduce occupancy, limit nuisances and protect sensitive infrastructures.

In dense urban environments, feasibility depends not only on the excavation method, but also on the location of shafts, accesses, gauges, schedules, materials management, permits, deformation control and coordination with all the agents involved.

Minimum checklist to minimize urban impacts: map of affected services, topography, geotechnics, inventory of nearby infrastructures, traffic plan, location of wells, accesses, hourly restrictions, auscultation criteria, permits, waste management and communication plan with owners or administrations.

Request a technical review of urban conditions for trenchless construction sites and assess how to reduce outages, occupancies and risks to existing services.